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?

- 200 Unique & Challenging Puzzles
- Game Center Achievements (V, X, L, C, CC)
- Game Center Leaderboard for Highest Level
- Beautiful Music, Sounds, and Retina Graphics
- Universal App looks Great on iPhone and iPad
- Share Solution Photos with Friends

Thanks for playing XXI by TMSOFT and good luck!


What’s New

Version 1.5

- Various updates to support latest iOS and library updates.

Ratings and Reviews

4.9 out of 5
16 Ratings

16 Ratings

Daughter of Zeus ,

Nice challenge

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

TMOSuberfan ,

Lost hours

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

Blondie gee ,

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.

App Privacy

The developer, TMSOFT, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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