What’s new
- Ported to SDL3.
- Replaced the legacy custom GUI system with RmlUI.
- Added customizable player colors.
- Refactoring [is still needed].
- Fixed various bugs.
Quick answer
Recursive Tic-Tac-Toe game
F-Droid repository metadata
This app is a recursive version of the popular game Tic-Tac-Toe (also known as Xs and Os), based on the Ultimate Tic-Tac-Toe game. The game supports customization of the playing field (width and height), the victory condition, the number of players, and player colors.
Screenshots
How to install
- Download the APK from the button at the top of this page.
- Allow “Install unknown apps” for your browser or file manager only, not for every app.
- Open the downloaded file and confirm the installation.
- If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.
Data safety
- Every file is checked against its published SHA-256 before it is listed.
- Files are scanned for malware on every update.
- The permissions each app requests are listed on its own page.
- Read the full safety policy for how we test, flag, and delist files.
Frequently asked questions
What is RTTT?
Recursive Tic-Tac-Toe game
Who develops RTTT?
RTTT is developed by Kirkezz.
Which Android version does RTTT require?
RTTT requires Android API 21 or later.
What is the current version of RTTT?
The synchronized F-Droid version is 1.3.
Which license does RTTT use?
The signed F-Droid metadata lists GPL-3.0-only.
Where is the source code for RTTT?
https://github.com/kirkezz/rttt
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