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Open Surge: retro game engine

F-Droid

Open source

A retro game engine with a fun platformer inspired by 16-bit Sonic games.

Version
6.1.3.0-fdroid
Size
43 MB
Updated
Jan 29, 2026
Get from Download APK (v6.1.3.0-fdroid)
Signing certificate on record

About this app

Make your dreams come true! Open Surge Engine is an open-source 2D retro game engine designed to make your dreams come true!

It's a ton of fun! Surge the Rabbit is a featured jump 'n' run created with the Open Surge Engine. It's made in the spirit of classic 16-bit Sonic platformers of the 1990s. Play as Surge in fun and exciting levels filled with challenges!

Unleash your creativity! Create your own amazing games and play them on your PC and on your mobile device! Share your games with your friends! It's limitless fun!

A powerful engine for retro games! One of the core elements of the engine is SurgeScript, a scripting language for games. Use it to create new gameplay mechanics, characters with special abilities, bosses, and much more! The sky is the limit!

Open Surge Engine is an amazing tool for learning game development, programming, digital art, and the nature of free and open-source software in a playful way.

Note: it's recommended to use a PC to create your games. You can play them on PCs and on mobile devices. Android TV users need a gamepad to play and a mouse to use the level editor.

Official website: http://opensurge2d.org

Licensed under GPL-3.0-or-later, by alemart.

OfficialSignature VerifiedOpen Source

What's New in v6.1.3.0-fdroid

Imported from the F-Droid repository index.

  • * Auto-detect gamepad layouts for consistent cross-platform behavior
  • * Introduced a more sophisticated architecture for the Audio System
  • * Prevent the underwater muffler from altering the drowning music
  • * Changed the formula of the underwater muffler
  • * Pause or resume all audio when pausing or resuming the game
  • * Improved the Pipe System and made it re-entrant

Version history

v6.1.3.0-fdroidLatest
Signature continuous

Jan 29, 2026 · 43 MB · Android API 2136 · code 30650

Imported from the F-Droid repository index.

  • * Auto-detect gamepad layouts for consistent cross-platform behavior
  • * Introduced a more sophisticated architecture for the Audio System
  • * Prevent the underwater muffler from altering the drowning music
  • * Changed the formula of the underwater muffler
  • * Pause or resume all audio when pausing or resuming the game
  • * Improved the Pipe System and made it re-entrant
READ_EXTERNAL_STORAGE

SHA-256 c1020c5a1e594b2189816ac39f657e827b9a4d22d199d72228ed7e276d70be77

v6.1.2.1-fdroid
Signature continuous

Sep 6, 2024 · 42.5 MB · Android API 2133 · code 30601

Imported from the F-Droid repository index.

READ_EXTERNAL_STORAGE

SHA-256 89f597b0625582c7deabe44852c2924069eb75d4fb5999a8070ae9844be3b9b5

v6.1.1.0-fdroid
Signature continuous

Jun 5, 2024 · 42.5 MB · Android API 2133 · code 30550

Imported from the F-Droid repository index.

  • * Fixed an OpenGL-related issue in the Flatpak edition
  • * Fixed a memory-related bug in the Entity Manager
  • * Updated metadata and translations
  • * Tweaked the water effect for extra performance
  • * Reintroduced the Create option at the Main Menu
  • * Updated the Thanks for Playing screen
READ_EXTERNAL_STORAGE

SHA-256 3f7bd94d78ef826179d00240c2dae8efdb5807cd81a96995fc6beac29e7f3518

Will it run on your device?

CompatibilityVery likely to run

92%

  • Runs on a broad range of modern Android versions.
  • Multiple CPU architectures are covered.
  • Aligned with the latest Android target SDK expectations.
What changed in this release
Size delta
+0.5 MB
Added permissions
None
Removed permissions
None

Installation Guide

1

Open Settings on your Android device

2

Go to Security → Unknown sources (or Install unknown apps)

3

Enable "Allow from this source" for your browser or file manager

4

Open the downloaded APK file from your Downloads folder

5

Tap "Install" and wait for installation to complete

6

Launch the app from your home screen

Make sure to re-enable Unknown Sources restrictions after installation for security.

How to install this safely

How to verify the file you downloaded

Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.

What the signing certificate proves

Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be org.opensurge2d.surgeengine is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.

How to roll back to an earlier version

If the current release misbehaves, 6.1.2.1-fdroid is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Open Surge: retro game engine first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.

Why we list sources instead of hosting everything

The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Open Surge: retro game engine, and a listing is removed when the evidence for it stops holding up.

Get Open Surge: retro game engine

Every source we list for org.opensurge2d.surgeengine is legality-reviewed. Pirated or cracked builds are never offered.

Other sources

F-Droid listing

official

F-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.

Source code

verified publisher

The upstream repository this build is compiled from.

We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.

App Information

Developer
F-Droid
Category
Games
Android
5.0+
Architectures
arm64-v8a, armeabi-v7a
Version
6.1.3.0-fdroid (code 30650)
Size
43 MB
Updated
Jan 29, 2026
Package name
org.opensurge2d.surgeengine

Security Verification

File integrity
SHA-256 recorded
Signing certificate
Fingerprint on record
Official source
Download APK (v6.1.3.0-fdroid)

We record provenance; we do not run malware scans. Verify the hash yourself before installing.

SHA-256 Hash

c1020c5a1e594b2189816ac39f657e827b9a4d22d199d72228ed7e276d70be77

Signing certificate

04fa8fbe40da5ac602d653aaa02526c04c14b51497ff1f2e311107c7571e5801

Permissions Required

READ_EXTERNAL_STORAGE

Previous Versions

v6.1.2.1-fdroid Sep 6, 2024
v6.1.1.0-fdroid Jun 5, 2024
Signature verified

The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.

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