Rum's Spring&Dungeon Downloads & RevenueRum's Spring&Dungeon: Idle RPG · App Store & Google Play
Rum's Spring&Dungeon: Idle RPG gets 100+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Rum's Spring&Dungeon: Idle RPG by SHINICHI FUJIMOTO is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
Rum's Spring&Dungeon: Idle RPG update history & changes
Last change · 15 events since 22 Jan 2022Full timeline ↓📈AndroidEntered the top 100📈AndroidCharting in a new country🆕iOSFirst spotted by AppInsider📦iOSVersion 5.9.1📦AndroidUpdated to version 5.9.1✏️AndroidDescription updated📦AndroidUpdated to version 5.9.0🆕AndroidFirst spotted by AppInsider🆕iOSReleased on the App Store
Full timeline · 15 events
- 📈Rum's Spring&Dungeon: Idle RPG entered the top 100AndroidTop Free · Role Playing · TW
- 📈Rum's Spring&Dungeon: Idle RPG charting in a new countryAndroidTaiwan
- 🆕Rum's Spring&Dungeon: Idle RPG first spotted by AppInsideriOSJapan (found via search)
- 📦Rum's Spring&Dungeon: Idle RPG version 5.9.1iOS• 5-star Elze returns in a Limited-Time Summon until Nov 24, 2026
• Improved save stability
• Transfer now ignores spaces and capitalization in User IDs and shows an error if it fails
• Ad Personalization is now OFF for everyone, so the "Privacy" option was removed
• Added Traditional Chinese and Spanish support
• Polished English text; "Rear Dungeon" is now "Hidden Dungeon"
• Fixed the 5-Star Select Ticket cost showing 1,000 Azure Spirit Stones instead of 10,000
• Fixed other minor bugs… more - 📦Rum's Spring&Dungeon: Idle RPG updated to version 5.9.1Android• 5-star Elze returns in a Limited-Time Summon until Nov 24, 2026
• Improved save stability
• Transfer now ignores spaces and capitalization in User IDs and shows an error if it fails
• Ad Personalization is now OFF for everyone, so the "Privacy" option was removed
• Added Traditional Chinese and Spanish support
• Polished English text; "Rear Dungeon" is now "Hidden Dungeon"
• Fixed the 5-Star Select Ticket cost showing 1,000 Azure Spirit Stones instead of 10,000
• Fixed other minor bugs… more - 📈Rum's Spring&Dungeon: Idle RPG entered the top 100AndroidTop Free · Role Playing · AU
- 📈Rum's Spring&Dungeon: Idle RPG charting in a new countryAndroidAustralia
- ✏️Rum's Spring&Dungeon: Idle RPG: description updatedAndroid· US
- 📦Rum's Spring&Dungeon: Idle RPG updated to version 5.9.0Android・Fixed a rare issue where server data could fail to load.
・Fixed several other minor issues. - 📈Rum's Spring&Dungeon: Idle RPG entered the top 100AndroidTop Free · Role Playing · CA
- 📈Rum's Spring&Dungeon: Idle RPG charting in a new countryAndroidCanada
- 🆕Rum's Spring&Dungeon: Idle RPG first spotted by AppInsiderAndroidJapan
- 📦Rum's Spring&Dungeon: Idle RPG updated to version 5.8.8Android・Limited-time 5-Star Serine summon rerun until Oct 27, 2026.
・Added Halloween Koakuma & Mii Skin, available until Nov 24, 2026.
・Fixed incorrect character info when re-entering the Dungeon.
・Added English and Simplified Chinese support.
・Improved notifications and data stability.
・Fixed other minor issues.… more - 📦Rum's Spring&Dungeon: Idle RPG version 5.8.5Android・星5「メア」のピックアップ召喚を開催(2026年9月29日までの期間限定復刻)
・ナツナスキンが期間限定で復刻(2026年9月29日まで)
・その他、いくつかの軽微な不具合の修正と安定性の向上 - 🆕Rum's Spring&Dungeon: Idle RPG released on the App StoreiOS
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.7 ★
8k ratings, both stores
Measured
Best rank now
#61
Android · 
Games › Role Playing Free
Games › Role Playing FreeMeasured
Rum's Spring&Dungeon: Idle RPG at a glance
AI summary written from our chart and store data. It can be wrong: check the numbers above.
Idle RPG Anime Fantasy short sessions IAP
#idle #rpg #auto-battle #roguelike #tower-defense #base-building
App Store
App details
App ID
1577284786
Publisher
SHINICHI FUJIMOTO
Publisher country
Japan
On the store since
Jan 2022
4 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
12+
2 content notes below
Languages
5
EN JA ZH ES ZH
Size
918 MB
Also listed in
Roleplaying, Entertainment, Strategy
Content notesInfrequent/Mild Cartoon or Fantasy ViolenceLoot Boxes
Google Play
App details
App ID
com.RSGames.RumsSpringAndDungeon
Publisher
R&SGAMES
Publisher country
Japan
Content rating
Teen
Rum's Spring&Dungeon: Idle RPG downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | – | – |
| Google Play | 100+ | 100k+ Measured |
| Total | 100+ Confidence | 100k+ Confidence |
How this is calculated
App Store: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Where Rum's Spring&Dungeon: Idle RPG's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: In-app purchase-led
How Rum's Spring&Dungeon: Idle RPG makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | – | 0 of 30 countries | – | – |
| Google Play | #61 Games › Role Playing Free | 2 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.7 ★ | 8k |
| Google Play | – | – |
| Both stores | 4.7 ★ weighted by ratings | 8k |
About Rum's Spring&Dungeon: Idle RPG
Rum's Spring & Dungeon is an easy-to-play idle RPG with plenty of depth. Train your favorite heroines, build your base, and blaze through dungeons at up to 20x speed!
◆ Game Features
・Fully automatic dungeon battles at up to 20x speed!
・No in-game ads—just you and the adventure!
・Simple, one-handed controls in portrait mode!
・Idle progression with plenty of ways to strengthen your characters!
・Easy to enjoy in just 3 minutes a day!
・Beautiful heroines brought to life by our dedicated illustrator!
・No additional downloads required!
▼ Story
For ages, humanity has fought against the Evil God, who seeks its destruction.
To protect Yuina, a girl chosen as humanity's ultimate weapon, Rum confronted the Evil God—and was defeated and sealed away.
But the Evil God was wounded too, and the world found a brief moment of peace.
Now, Yuina sets out to rescue Rum, determined to save the one who fought in her place...
Rescue Rum, the captive girl, and embark on an adventure to save the world!
▼ Into the Dungeon! Blazing-Fast 2D Auto-Battles!
Train your team and venture into the dungeon where the Evil God is said to slumber!
Watch your chibi characters explore and battle automatically. Keep upgrading them during combat to push even farther!
▼ Foray Mode: Roguelike Tower Defense?!
Take your trained characters through a series of events and defeat enemy bosses!
Plan around your characters' strengths and costs as you fend off incoming enemies. Both strategy and luck shape every run!
▼ Packed with Idle Features!
Upgrade the Scarecrow on the Home screen to improve training efficiency and earn more EXP over time!
In Base Mode, unlock new areas of the map, gather materials, and build facilities that automatically produce useful items and EXP.
Exchange your materials for rare items used to upgrade buildings and strengthen your characters!
▼ Bring Your Whole Roster Into Total War!
Rescue the girls who sacrificed themselves to seal away the Evil God's minions!
In this special mode, all your characters unleash their full power for 30 seconds. Train and strengthen your team before taking on the challenge!
▼ Meet the Developers
We're a husband-and-wife indie team from Japan. We handle everything ourselves, from planning and development to design, illustration, and ongoing updates.
Your support and encouragement keep us going. Thank you for playing!
Official X (posts in Japanese): x.com/RumsSpringStaff
Official website: global.rumsspring.com/en/
▼ Recommended for Players Who:
・Enjoy idle RPGs with long-term character progression
・Love dungeon crawling, roguelike modes, and tower defense
・Want quick sessions during commutes or breaks
・Enjoy collecting and training anime heroines
・Prefer one-handed, portrait-mode games
・Love watching their characters grow stronger and their damage numbers climb
▼ Recommended OS
iOS 15.0 or later
▼ Recommended Devices
iPhone 8 Plus or later
◆ Game Features
・Fully automatic dungeon battles at up to 20x speed!
・No in-game ads—just you and the adventure!
・Simple, one-handed controls in portrait mode!
・Idle progression with plenty of ways to strengthen your characters!
・Easy to enjoy in just 3 minutes a day!
・Beautiful heroines brought to life by our dedicated illustrator!
・No additional downloads required!
▼ Story
For ages, humanity has fought against the Evil God, who seeks its destruction.
To protect Yuina, a girl chosen as humanity's ultimate weapon, Rum confronted the Evil God—and was defeated and sealed away.
But the Evil God was wounded too, and the world found a brief moment of peace.
Now, Yuina sets out to rescue Rum, determined to save the one who fought in her place...
Rescue Rum, the captive girl, and embark on an adventure to save the world!
▼ Into the Dungeon! Blazing-Fast 2D Auto-Battles!
Train your team and venture into the dungeon where the Evil God is said to slumber!
Watch your chibi characters explore and battle automatically. Keep upgrading them during combat to push even farther!
▼ Foray Mode: Roguelike Tower Defense?!
Take your trained characters through a series of events and defeat enemy bosses!
Plan around your characters' strengths and costs as you fend off incoming enemies. Both strategy and luck shape every run!
▼ Packed with Idle Features!
Upgrade the Scarecrow on the Home screen to improve training efficiency and earn more EXP over time!
In Base Mode, unlock new areas of the map, gather materials, and build facilities that automatically produce useful items and EXP.
Exchange your materials for rare items used to upgrade buildings and strengthen your characters!
▼ Bring Your Whole Roster Into Total War!
Rescue the girls who sacrificed themselves to seal away the Evil God's minions!
In this special mode, all your characters unleash their full power for 30 seconds. Train and strengthen your team before taking on the challenge!
▼ Meet the Developers
We're a husband-and-wife indie team from Japan. We handle everything ourselves, from planning and development to design, illustration, and ongoing updates.
Your support and encouragement keep us going. Thank you for playing!
Official X (posts in Japanese): x.com/RumsSpringStaff
Official website: global.rumsspring.com/en/
▼ Recommended for Players Who:
・Enjoy idle RPGs with long-term character progression
・Love dungeon crawling, roguelike modes, and tower defense
・Want quick sessions during commutes or breaks
・Enjoy collecting and training anime heroines
・Prefer one-handed, portrait-mode games
・Love watching their characters grow stronger and their damage numbers climb
▼ Recommended OS
iOS 15.0 or later
▼ Recommended Devices
iPhone 8 Plus or later
Rum's Spring&Dungeon: Idle RPG App Store
Rum's Spring&Dungeon: Idle RPG gets 100+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperSHINICHI FUJIMOTO
CategoryGames
PriceFree
Released
Rating★ 4.7 (8k)
Version5.9.1
Age rating12+
First seen by us
30 Oct 2026
30 Oct 2026Rating
4.7 ★
8k ratings
Measured
Rum's Spring&Dungeon: Idle RPG on the App Store
App details
App ID
1577284786
Publisher
SHINICHI FUJIMOTO
Publisher country
Japan
On the store since
Jan 2022
4 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
12+
2 content notes below
Languages
5
EN JA ZH ES ZH
Size
918 MB
Also listed in
Roleplaying, Entertainment, Strategy
Content notesInfrequent/Mild Cartoon or Fantasy ViolenceLoot Boxes
Rum's Spring&Dungeon: Idle RPG downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Rum's Spring&Dungeon: Idle RPG's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: In-app purchase-led
How Rum's Spring&Dungeon: Idle RPG makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.7 ★
8k ratings
Measured
Ratings
8k
Measured
About Rum's Spring&Dungeon: Idle RPG
Rum's Spring & Dungeon is an easy-to-play idle RPG with plenty of depth. Train your favorite heroines, build your base, and blaze through dungeons at up to 20x speed!
◆ Game Features
・Fully automatic dungeon battles at up to 20x speed!
・No in-game ads—just you and the adventure!
・Simple, one-handed controls in portrait mode!
・Idle progression with plenty of ways to strengthen your characters!
・Easy to enjoy in just 3 minutes a day!
・Beautiful heroines brought to life by our dedicated illustrator!
・No additional downloads required!
▼ Story
For ages, humanity has fought against the Evil God, who seeks its destruction.
To protect Yuina, a girl chosen as humanity's ultimate weapon, Rum confronted the Evil God—and was defeated and sealed away.
But the Evil God was wounded too, and the world found a brief moment of peace.
Now, Yuina sets out to rescue Rum, determined to save the one who fought in her place...
Rescue Rum, the captive girl, and embark on an adventure to save the world!
▼ Into the Dungeon! Blazing-Fast 2D Auto-Battles!
Train your team and venture into the dungeon where the Evil God is said to slumber!
Watch your chibi characters explore and battle automatically. Keep upgrading them during combat to push even farther!
▼ Foray Mode: Roguelike Tower Defense?!
Take your trained characters through a series of events and defeat enemy bosses!
Plan around your characters' strengths and costs as you fend off incoming enemies. Both strategy and luck shape every run!
▼ Packed with Idle Features!
Upgrade the Scarecrow on the Home screen to improve training efficiency and earn more EXP over time!
In Base Mode, unlock new areas of the map, gather materials, and build facilities that automatically produce useful items and EXP.
Exchange your materials for rare items used to upgrade buildings and strengthen your characters!
▼ Bring Your Whole Roster Into Total War!
Rescue the girls who sacrificed themselves to seal away the Evil God's minions!
In this special mode, all your characters unleash their full power for 30 seconds. Train and strengthen your team before taking on the challenge!
▼ Meet the Developers
We're a husband-and-wife indie team from Japan. We handle everything ourselves, from planning and development to design, illustration, and ongoing updates.
Your support and encouragement keep us going. Thank you for playing!
Official X (posts in Japanese): x.com/RumsSpringStaff
Official website: global.rumsspring.com/en/
▼ Recommended for Players Who:
・Enjoy idle RPGs with long-term character progression
・Love dungeon crawling, roguelike modes, and tower defense
・Want quick sessions during commutes or breaks
・Enjoy collecting and training anime heroines
・Prefer one-handed, portrait-mode games
・Love watching their characters grow stronger and their damage numbers climb
▼ Recommended OS
iOS 15.0 or later
▼ Recommended Devices
iPhone 8 Plus or later
◆ Game Features
・Fully automatic dungeon battles at up to 20x speed!
・No in-game ads—just you and the adventure!
・Simple, one-handed controls in portrait mode!
・Idle progression with plenty of ways to strengthen your characters!
・Easy to enjoy in just 3 minutes a day!
・Beautiful heroines brought to life by our dedicated illustrator!
・No additional downloads required!
▼ Story
For ages, humanity has fought against the Evil God, who seeks its destruction.
To protect Yuina, a girl chosen as humanity's ultimate weapon, Rum confronted the Evil God—and was defeated and sealed away.
But the Evil God was wounded too, and the world found a brief moment of peace.
Now, Yuina sets out to rescue Rum, determined to save the one who fought in her place...
Rescue Rum, the captive girl, and embark on an adventure to save the world!
▼ Into the Dungeon! Blazing-Fast 2D Auto-Battles!
Train your team and venture into the dungeon where the Evil God is said to slumber!
Watch your chibi characters explore and battle automatically. Keep upgrading them during combat to push even farther!
▼ Foray Mode: Roguelike Tower Defense?!
Take your trained characters through a series of events and defeat enemy bosses!
Plan around your characters' strengths and costs as you fend off incoming enemies. Both strategy and luck shape every run!
▼ Packed with Idle Features!
Upgrade the Scarecrow on the Home screen to improve training efficiency and earn more EXP over time!
In Base Mode, unlock new areas of the map, gather materials, and build facilities that automatically produce useful items and EXP.
Exchange your materials for rare items used to upgrade buildings and strengthen your characters!
▼ Bring Your Whole Roster Into Total War!
Rescue the girls who sacrificed themselves to seal away the Evil God's minions!
In this special mode, all your characters unleash their full power for 30 seconds. Train and strengthen your team before taking on the challenge!
▼ Meet the Developers
We're a husband-and-wife indie team from Japan. We handle everything ourselves, from planning and development to design, illustration, and ongoing updates.
Your support and encouragement keep us going. Thank you for playing!
Official X (posts in Japanese): x.com/RumsSpringStaff
Official website: global.rumsspring.com/en/
▼ Recommended for Players Who:
・Enjoy idle RPGs with long-term character progression
・Love dungeon crawling, roguelike modes, and tower defense
・Want quick sessions during commutes or breaks
・Enjoy collecting and training anime heroines
・Prefer one-handed, portrait-mode games
・Love watching their characters grow stronger and their damage numbers climb
▼ Recommended OS
iOS 15.0 or later
▼ Recommended Devices
iPhone 8 Plus or later
Latest updates
5.9.1
• 5-star Elze returns in a Limited-Time Summon until Nov 24, 2026
• Improved save stability
• Transfer now ignores spaces and capitalization in User IDs and shows an error if it fails
• Ad Personalization is now OFF for everyone, so the "Privacy" option was removed
• Added Traditional Chinese and Spanish support
• Polished English text; "Rear Dungeon" is now "Hidden Dungeon"
• Fixed the 5-Star Select Ticket cost showing 1,000 Azure Spirit Stones instead of 10,000
• Fixed other minor bugs
Rum's Spring&Dungeon: Idle RPG Android
Rum's Spring&Dungeon: Idle RPG gets 100+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
Rum's Spring&Dungeon: Idle RPG is #127 in Games › Role Playing Free on Google Play in Japan and charting in 2 of 23 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperR&SGames
CategoryGames › Role Playing
PriceFree
Released–
Installs100k+
Rating–
Updated
Content ratingTeen
Best rank now
#127
Games › Role Playing FreeMeasured
Rum's Spring&Dungeon: Idle RPG at a glance
AI summary written from our chart and store data. It can be wrong: check the numbers above.
Idle RPG Anime Fantasy short sessions IAP
#idle #rpg #auto-battle #roguelike #tower-defense #base-building
Rum's Spring&Dungeon: Idle RPG on Google Play
App details
App ID
com.RSGames.RumsSpringAndDungeon
Publisher
R&SGAMES
Publisher country
Japan
Content rating
Teen
Rum's Spring&Dungeon: Idle RPG downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where Rum's Spring&Dungeon: Idle RPG's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: In-app purchase-led
How Rum's Spring&Dungeon: Idle RPG makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | Games › Role PlayingFree | #127 |
| Taiwan | Games › Role PlayingFree | #61 |
Apps near Rum's Spring&Dungeon: Idle RPG on the chart
Games › Role Playing Free, around #127.
About Rum's Spring&Dungeon: Idle RPG
Rum's Spring & Dungeon is an easy-to-play idle RPG with plenty of depth. Train your favorite heroines, build your base, and blaze through dungeons at up to 20x speed!
◆ Game Features
・Fully automatic dungeon battles at up to 20x speed!
・No in-game ads—just you and the adventure!
・Simple, one-handed controls in portrait mode!
・Idle progression with plenty of ways to strengthen your characters!
・Easy to enjoy in just 3 minutes a day!
・Beautiful heroines brought to life by our dedicated illustrator!
・No additional downloads required!
▼ Story
For ages, humanity has fought against the Evil God, who seeks its destruction.
To protect Yuina, a girl chosen as humanity's ultimate weapon, Rum confronted the Evil God—and was defeated and sealed away.
But the Evil God was wounded too, and the world found a brief moment of peace.
Now, Yuina sets out to rescue Rum, determined to save the one who fought in her place...
Rescue Rum, the captive girl, and embark on an adventure to save the world!
▼ Into the Dungeon! Blazing-Fast 2D Auto-Battles!
Train your team and venture into the dungeon where the Evil God is said to slumber!
Watch your chibi characters explore and battle automatically. Keep upgrading them during combat to push even farther!
▼ Foray Mode: Roguelike Tower Defense?!
Take your trained characters through a series of events and defeat enemy bosses!
Plan around your characters' strengths and costs as you fend off incoming enemies. Both strategy and luck shape every run!
▼ Packed with Idle Features!
Upgrade the Scarecrow on the Home screen to improve training efficiency and earn more EXP over time!
In Base Mode, unlock new areas of the map, gather materials, and build facilities that automatically produce useful items and EXP.
Exchange your materials for rare items used to upgrade buildings and strengthen your characters!
▼ Bring Your Whole Roster Into Total War!
Rescue the girls who sacrificed themselves to seal away the Evil God's minions!
In this special mode, all your characters unleash their full power for 30 seconds. Train and strengthen your team before taking on the challenge!
▼ Meet the Developers
We're a husband-and-wife indie team from Japan. We handle everything ourselves, from planning and development to design, illustration, and ongoing updates.
Your support and encouragement keep us going. Thank you for playing!
Official X (posts in Japanese): x.com/RumsSpringStaff
Official website: global.rumsspring.com/en/
▼ Recommended for Players Who:
・Enjoy idle RPGs with long-term character progression
・Love dungeon crawling, roguelike modes, and tower defense
・Want quick sessions during commutes or breaks
・Enjoy collecting and training anime heroines
・Prefer one-handed, portrait-mode games
・Love watching their characters grow stronger and their damage numbers climb
▼ Recommended Devices
Google Pixel 3a or later
RAM: 4 GB or more
◆ Game Features
・Fully automatic dungeon battles at up to 20x speed!
・No in-game ads—just you and the adventure!
・Simple, one-handed controls in portrait mode!
・Idle progression with plenty of ways to strengthen your characters!
・Easy to enjoy in just 3 minutes a day!
・Beautiful heroines brought to life by our dedicated illustrator!
・No additional downloads required!
▼ Story
For ages, humanity has fought against the Evil God, who seeks its destruction.
To protect Yuina, a girl chosen as humanity's ultimate weapon, Rum confronted the Evil God—and was defeated and sealed away.
But the Evil God was wounded too, and the world found a brief moment of peace.
Now, Yuina sets out to rescue Rum, determined to save the one who fought in her place...
Rescue Rum, the captive girl, and embark on an adventure to save the world!
▼ Into the Dungeon! Blazing-Fast 2D Auto-Battles!
Train your team and venture into the dungeon where the Evil God is said to slumber!
Watch your chibi characters explore and battle automatically. Keep upgrading them during combat to push even farther!
▼ Foray Mode: Roguelike Tower Defense?!
Take your trained characters through a series of events and defeat enemy bosses!
Plan around your characters' strengths and costs as you fend off incoming enemies. Both strategy and luck shape every run!
▼ Packed with Idle Features!
Upgrade the Scarecrow on the Home screen to improve training efficiency and earn more EXP over time!
In Base Mode, unlock new areas of the map, gather materials, and build facilities that automatically produce useful items and EXP.
Exchange your materials for rare items used to upgrade buildings and strengthen your characters!
▼ Bring Your Whole Roster Into Total War!
Rescue the girls who sacrificed themselves to seal away the Evil God's minions!
In this special mode, all your characters unleash their full power for 30 seconds. Train and strengthen your team before taking on the challenge!
▼ Meet the Developers
We're a husband-and-wife indie team from Japan. We handle everything ourselves, from planning and development to design, illustration, and ongoing updates.
Your support and encouragement keep us going. Thank you for playing!
Official X (posts in Japanese): x.com/RumsSpringStaff
Official website: global.rumsspring.com/en/
▼ Recommended for Players Who:
・Enjoy idle RPGs with long-term character progression
・Love dungeon crawling, roguelike modes, and tower defense
・Want quick sessions during commutes or breaks
・Enjoy collecting and training anime heroines
・Prefer one-handed, portrait-mode games
・Love watching their characters grow stronger and their damage numbers climb
▼ Recommended Devices
Google Pixel 3a or later
RAM: 4 GB or more
What's new in 5.9.1
• 5-star Elze returns in a Limited-Time Summon until Nov 24, 2026
• Improved save stability
• Transfer now ignores spaces and capitalization in User IDs and shows an error if it fails
• Ad Personalization is now OFF for everyone, so the "Privacy" option was removed
• Added Traditional Chinese and Spanish support
• Polished English text; "Rear Dungeon" is now "Hidden Dungeon"
• Fixed the 5-Star Select Ticket cost showing 1,000 Azure Spirit Stones instead of 10,000
• Fixed other minor bugs
• Improved save stability
• Transfer now ignores spaces and capitalization in User IDs and shows an error if it fails
• Ad Personalization is now OFF for everyone, so the "Privacy" option was removed
• Added Traditional Chinese and Spanish support
• Polished English text; "Rear Dungeon" is now "Hidden Dungeon"
• Fixed the 5-Star Select Ticket cost showing 1,000 Azure Spirit Stones instead of 10,000
• Fixed other minor bugs
Store changes
What Rum's Spring&Dungeon: Idle RPG changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated