• XXI: 21 Puzzle Game 1
  • XXI: 21 Puzzle Game 2
  • XXI: 21 Puzzle Game 3
  • XXI: 21 Puzzle Game 4

XXI: 21 Puzzle Game

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

Thanks for playing XXI by TMSOFT and good luck!

Website: http://www.tmsoft.com/xxi/

Category : Puzzle

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Reviews (27)

Dar. H. Dec 11, 2017     

This is the first time I've ever given a 5 star review on a game. This game helps ground me when experiencing anxiety, helps me relax before and after work and school, and pairs well with coffee in the morning when I'm waking up. Thank you for making this app. :)

A. G. u. Aug 15, 2021     

This game was thoroughly entertaining. Kept me hooked for two years. One of my favourites

Ali. H. Jun 11, 2016     

It is a best .

Kri. M. Jun 12, 2016     

.. But challenging!

Tim. B. Mar 31, 2016     

Driving my tesla is more difficult than figuring out how to play xxi.. another great app featured on the mike o meara show. Now if oscar could just stop laughing..

Tor. *. Apr 5, 2016     

Fun and addictive. Would like the end changed.... at lest a weldon not just straight to fb lol. Other than that cool little game

Mat. W. Apr 4, 2016     

A great game but the a tile with a symbol on it and I not a clue its value so I'm just wasting time trying every combination so it not a puzzle. They should add a tab which tells u what unique tiles do

Ton. C. May 7, 2016     

It's fun, challenging in the higher level and has nice sound effects and background music.

Rit. N. Apr 16, 2016     

At the beginning is simple to achieve the levels but as we are going through, levels tend to be more challenging.

Dav. S. Apr 23, 2016     

and i get reminded about roman numerals too haha

ste. h. Apr 1, 2016     

It starts out easy and picks up as the levels pass!! Another great game by Mr. MOORE!

Bil. A. Apr 4, 2016     

Makes me want piksa! Seriously, keeps me on the crapper longer than necessary.

Tra. Apr 4, 2016     

As puzzle this game is so simple and easy but good for killing time

Amm. A. Apr 4, 2016     

After how many levels I'm going to receive achievements like C, CC etc.. there's no description in Google PlayGames about it..

Ste. H. Apr 2, 2016     

More fun than waiting in line to drop $1k on a new Tesla

Dan. G. Apr 5, 2016     

Great game but could do with intro of the ace tile

Cal. S. Apr 21, 2016     

Polished and interesting puzzler. Lots of levels available to complete.

Ste. S. Apr 2, 2016     

Cool game but to simple.

Sea. F. Apr 1, 2016     

Great game to play while driving my tesla

Dom. K. Apr 5, 2016     

This game is a bit......compulsive. thanks Todd for another game and your support to TMOS

Ome. A. May 8, 2016     

Nice way to pass the time

Lam. Apr 24, 2016     

Love it

Jer. T. Apr 7, 2016     

Addicting

Sco. H. Mar 28, 2016     

Give yourself plenty of time to play this game because when you start you will find yourself constantly saying, "just one more level..."

Ste. H. Mar 29, 2016     

Soothing.

Ric. L. Mar 31, 2016     

Thank you tmsoft for the unlimited entertainment!

Mic. O. Apr 3, 2016     

But yes, it's about the pattern, not the numbers.