XXI: 21 Puzzle Game for Android - Download Free [Latest Version + MOD] 2025

Whats new in XXI v1.6.2

4 things about XXI: 21 Puzzle Game

1. All gems have a unique numerical value, but watch out for the special gem that can be either a 1 or 11.
2. Move the gems around on the board until a solution is found.
3. Puzzles get harder as you progress your way through all 200 levels.
4. XXI puzzles require a sum of 21 in every row and column.

Release date: 2023-07-14
Current version: 1.6.2
File size: 23.45 MB
Developer: TMSOFT

How to setup XXI APK:

APK (Android Package Kit) files are the raw files of an Android app. Learn how to install xxi-21-puzzle-game.apk file on your phone in 4 Simple Steps:

Download the xxi-21-puzzle-game.apk to your device using any of the download mirrors.
Allow 3rd Party (non playstore) apps on your device: Go to Menu » Settings » Security » . Click "Unknown Sources". You will be prompted to allow your browser or file manager to install APKs.
Locate the xxi-21-puzzle-game.apk file and click to Install: Read all on-screen prompts and click "Yes" or "No" accordingly.
After installation, the XXI app will appear on the home screen of your device.

Is XXI APK Safe?

Yes. We provide some of the safest Apk download mirrors for getting the XXI apk.

Download Mirrors

Mirrors: Download for Android

On iTunes: Free On iTunes

Reviews

Nice challenge

Fun and challenging without being frustrating. A little easy to start, but by the 100th level, it starts to get interesting.

~ By Daughter of Zeus

Another win

TM Soft does it again with an addicting and challenging game that keeps me entertained in waiting rooms, passenger seats of cars, and at work.

~ By Blondie gee

Lost hours

Really addictive platform that made me lose time and stay up waaaaaay too late. Save some for Dad now

~ By TMOSuberfan

Challenging!

Love this game! It's challenging, yet achievable! Really gets the brain going! And I LOVE playing with the fire ;) well done!

~ By Louannm