Chogan

Chogan is a collection of small, finishable games in one app: more than fifty, with new ones arriving as updates.

The games:

• Tower Defence — four towers, six maps, twenty waves
• Sudoku — four difficulties, notes and hints
• Minesweeper — no-guess boards, four sizes
• Dots and Boxes — two players or against the AI
• Backgammon — two players or against the AI
• Mancala — Kalah rules, two players or the AI
• Nonogram — three sizes, solvable by logic alone
• FreeCell — the classic numbered deals
• Reversi — two players or against the AI
• Nine Men's Morris — two players or against the AI
• Peg Solitaire — leave one peg, in the centre
• Battleship — against an AI that never cheats
• Bridges — every puzzle with one solution
• Code Breaker — three levels, colour-blind friendly
• Breakout — twelve levels, three balls each
• Pasur — the Persian fishing card game
• Mahjong Solitaire — three layouts, every deal solvable
• Chess — AI or two players, plus Lichess puzzles
• Hokm — the Persian four-player card game
• Block Drop — falling blocks: sprint or marathon
• Gomoku — five in a row on 9, 13 or 15 lines
• Go — 9×9 with automatic counting
• Way Out — send every arrow off the board
• Blackjack — closer to 21 than the dealer, no betting
• 8-Ball Pool — pot your group, then the 8
• Snooker — 6, 10 or 15 reds
• Gridlock — slide the cars and drive yours out
• Chain Reaction — orbs burst in chains; 2 to 4 players
• Ludo — race your tokens home; 2 to 4 players
• Snakes and Ladders — first to 100; 2 to 4 players
• Darts — 501 or 301, finish on a double
• Bowling — ten frames, swipe to bowl
• Sliding Puzzle — 3×3 to 5×5
• Jigsaw — 12 to 150 pieces, pictures drawn in code
• Checkers — classic, Spanish or Huevo Style rules
• Klondike — classic solitaire, draw one or three
• Crazy Eights — Iranian or international rules
• Gin Rummy — melds and deadwood, a match to 100
• Shelem — Hokm with bidding, a match to 505
• Spider — one, two or four suits
• Pairs — the memory game
• Gorillas — exploding bananas: angle, power, wind
• Hop — bounce from platform to platform
• Tanks — fire across the hills with five weapons
• Chinese chess — xiangqi with palace and cannons
• Ping Pong — table tennis from above, first to 11
• Air Hockey — a neon table, first to seven
• Echo — repeat the order, one more each round
• Lights Off — put every light out
• Corridor — walk across and block with walls
• Link Up — join your two edges with links
• Sums — erase numbers until every line adds up
• Tower Up — drop each sliding block on the tower
• Dominoes — All Fives or plain, against a bot
• Water Sort — pour until each tube holds one colour
• Button Football — flick your discs; a bot or two players
• Wrigglers — eat, grow and cut the bots off

Around the games:

• A daily challenge that is identical on every device, with no server at all
• A weekly offline league with five tiers
• Over 150 awards
• Stats and a profile
• Persian, English, Simplified Chinese, German, Spanish and Polish interface with light and dark themes

On privacy:

• The only permission the app declares is vibration. Not even internet access
• No ads, no in-app purchases, no analytics, no tracking
• Everything ships inside the package; even the sound is made in code
• Progress is stored on the device only, and Google auto-backup is turned off

Free and open source under the MIT licence.