XXI: 21 Puzzle Game
- Developer
- TMSOFT
- Category
- Puzzle
- Version
- 1.7
- Installs
- 100,000+
- Play rating
- 4.1★ (712)
- Price
- Free
Source: Google Play listing Checked: 1 Nov 2026
Looking for Xxi Viduo on Android? The matching game on Google Play is XXI: 21 Puzzle Game by TMSOFT. Below: what it does, what’s new, what your phone needs, and where to get it safely.
Overview
What Is XXI: 21 Puzzle Game?
Can you get a sum of 21 in every row and column? It's not that easy!
From the developer’s Google Play description:
XXI puzzles require a sum of 21 in every row and column. Move the gems around on the board until a solution is found. All gems have a unique numerical value, but watch out for the special gem that can be either a 1 or 11. Puzzles get harder as you progress your way through all 200 levels. Can you become a XXI champion?
FEATURES
- 200 Unique & Challenging Puzzles
- Google Play Achievements (V, X, L, C, CC)
- Google Play Leaderboard for Highest Level
- Beautiful Music, Sounds, and Graphics
- Optimized for all Android Phones and Tablets
- Share Solution Photos with Friends
App details
App Specifications
| App name | XXI: 21 Puzzle Game |
|---|---|
| Developer | TMSOFT |
| Package name | com.tmsoft.xxi |
| Latest version | 1.7 |
| Last updated | 22 Aug 2025 |
| Category | Puzzle |
| Content rating | Rated for 3+ |
| Installs | 100,000+ |
| Google Play rating | 4.1 out of 5 from 712 ratings |
| Price | Free |
| Monetisation | Contains ads · No in-app purchases |
| First released | Mar 23, 2016 |
| Listing checked |
Download
Where to Download XXI: 21 Puzzle Game
The safest source is the official Google Play listing, which delivers updates automatically and is signed by the developer. APKProZ does not host or modify this file.
Safety and privacy
Staying Safe
Before installing, check that the publisher shown on Google Play is exactly TMSOFT. Look-alike apps with similar names and icons are common for popular services, especially government ones.
Read the developer’s privacy policy to see what data the app collects.
Installation
How to Install XXI: 21 Puzzle Game
- Open the Google Play link above on your Android phone.
- Confirm the developer name reads TMSOFT.
- Tap Install and open the app once it finishes.
FAQ
Frequently Asked Questions About Xxi Viduo
Which app is used for Xxi Viduo?
XXI: 21 Puzzle Game by TMSOFT, available on Google Play.
Who developed XXI: 21 Puzzle Game?
XXI: 21 Puzzle Game is published on Google Play by TMSOFT.
Is XXI: 21 Puzzle Game free?
Yes. Google Play lists XXI: 21 Puzzle Game as free, and it shows ads.
When was XXI: 21 Puzzle Game last updated?
The Google Play listing was last updated on 22 Aug 2025 (version 1.7).
More Puzzle Games on Google Play
Facts on this page come from the public Google Play listing for XXI: 21 Puzzle Game as checked on . Ratings, installs and prices change over time; the listing is authoritative. Spotted an error? Tell us.
At a Glance
- App
- XXI: 21 Puzzle Game
- Developer
- TMSOFT
- Updated
- 22 Aug 2025
- Source
- Google Play
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