Chess against a 10-level computer, two players with a clock, and 2,000 mate puzzles with a Puzzle Editor.
vs Computer on 10 levels, beginner to champion
2 players on one phone with a chess clock
2,000 solver-proven mate puzzles and a daily puzzle
Puzzle Editor with Lichess import and a generator
About Chess Crown
Chess Crown is a complete chess game for Unity 6, ready to reskin and publish on Android and iOS. Play the computer on 10 levels, play a friend on the same phone with a chess clock, and solve 2,000 checkmate puzzles, with a Puzzle Editor to add as many more as you like.
The chess engine is plain C# with no Unity code in it, easy to read, test and reuse. Everything runs on the phone: no server and no running costs.
Features
Game modes
vs Computer: 10 levels from beginner (about 250 Elo) to champion (about 2200)
2 players on one phone with an optional chess clock
2,000 checkmate puzzles, mate in 1 to mate in 4, with 3 stars each
Daily puzzle with a streak counter, unfinished games are saved
Chess
Complete rules: castling, en passant, promotion and every draw rule
A real engine in plain C#: PVS, transposition table, quiescence search
About 80 named openings shown as they are played
Hints with an arrow, undo and a move list in standard notation
Puzzle Editor
Browse, search, reorder and play-test the puzzles
Set up a position and let the solver write the solution
Import puzzles from the free Lichess database (CC0)
Generate new original mate puzzles with the engine
Rewards and economy
Coins for wins and solved puzzles, a free daily Lucky Spin and a Star Chest
Hints and undos for coins or rewarded ads
Signed save and clock-safe daily rewards
Monetization
AdMob ready: banner, interstitial, rewarded and app open ads
Google UMP consent and the iOS tracking prompt
Unity IAP 5: coin packs, a starter bundle and No Ads
Themes and polish
8 boards, 6 piece sets and 6 backgrounds
5 languages, more are added in one CSV file
Move, capture, check and promotion sounds, music and haptics
Requirements
Unity 6000.0 LTS (made with 6000.0.84f1)
For ads: the Google Mobile Ads Unity plugin, free from Google
Android Build Support (Android 7.0 and newer)
iOS Build Support, a Mac with Xcode and CocoaPods (iOS 13 and newer)