Rum’s Spring&Dungeon Idle RPG
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Before you install
- If Android refuses to install the file, the system is blocking installs from unknown sources. Allow this app in Settings, then choose to install anyway when prompted.
- If you see an "incompatible version" message, the build likely targets an older CPU architecture (ARMv7) that newer phones no longer accept. Look for an ARM64 (ARMv8) build of the same version instead.
Download FAQs
What does the modified build change in Rum’s Spring&Dungeon Idle RPG?
This build is labeled Menu, Unlimited Currencies. It includes a menu and unlimited currencies as the listed modification. Other platform-controlled outcomes can depend on the developer or platform.
What limited-time content is included in version 5.8.8?
Version 5.8.8 reruns the limited-time 5-Star Serine summon until October 27, 2026. Halloween Koakuma and Mii skins are listed as available until November 24, 2026.
What Dungeon issue does version 5.8.8 fix?
The update fixes incorrect character information when you re-enter the Dungeon. It also includes other minor fixes.
What Android version is required for Rum’s Spring&Dungeon Idle RPG?
Android 7.1 or later is the minimum requirement. The listed download size is 450.2 MB, so you also need enough available storage for the file.
Which languages were added in version 5.8.8?
Version 5.8.8 adds English and Simplified Chinese support. The update also improves notifications and data stability.
The download link does not work
Reload this page and start the download again — links are generated per visit and expire. If it still fails, the file may be getting replaced with a newer build; try again shortly.
It says "App not installed"
That usually means a different signature of the same app is already on the device. Uninstall the existing copy first, then install this file. Back up in-app data beforehand, since uninstalling clears it.
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