All games, A to Z
260 games: 249 live, 11 ended. Link-checked every 12 hours. Updated 25 Oct 2026.
#2 games
A17 games
- A=BAlgorithms
- Advent of CodeAlgorithms
- Advent of CodSpeedAlgorithms
- Advent of CSSCSS
- Advent of CyberSecurity
- Advent of JavaScriptJavaScript
- Advent of RustRust
- Advent of SQL(having trouble)SQL
- AdventJSJavaScript
- AI ArenaMachine learning
- Al Zimmermann's Programming ContestsAlgorithms
- alert(1) to winSecurity
- AlgoMonsterAlgorithms
- Anarchy GolfAlgorithms
- AnchoreumCSS
- Artifacts MMOAPI
- AtCoderAlgorithms
B9 games
C43 games
- CascadeCSS
- challenges.reSecurity
- CheckiOPython
- CloudDojoDevOps
- CMD ChallengeShell
- Code AbbeyAlgorithms
- Code CrunchersJavaScript
- Code Golf Stack ExchangeAlgorithms
- Code MonsterJavaScript
- code.golfAlgorithms
- CodebreakerVocabulary
- CodeChefAlgorithms
- CodeCombatPython
- CodeCraftersMulti-language
- CodeforcesAlgorithms
- CodeleMulti-language
- CodePen ChallengesFrontend
- Coder OneendedMachine learning
- CoderbyteAlgorithms
- CodeSignalAlgorithms
- CodewarsAlgorithms
- CodewellendedFrontend
- Coding ChallengesMulti-language
- CodinGameAlgorithms
- ColobotMulti-language
- Comet 64Assembly
- The Command Line MurdersShell
- Core War (KotH)Assembly
- corewars8086_jsAssembly
- crackmes.oneSecurity
- Craftomation 101Visual
- CryptoHackSecurity
- CryptopalsSecurity
- CS AcademyAlgorithms
- CSES Problem SetAlgorithms
- CSS DinerCSS
- CSS ScoopsCSS
- CSS SpeedrunCSS
- CSS SurgeonCSS
- CSSBattleCSS
- CTFlearnSecurity
- Cube ComposerFunctional
- CyberDefendersSecurity
D10 games
E10 games
F10 games
G19 games
- Gandalf: Agent BreakerAI
- generals.botendedAlgorithms
- git gud (Steam)Git
- git-gameGit
- git-gudGit
- git-tutorGit
- GithugGit
- GladiabotsVisual
- Google Code JamendedAlgorithms
- Google GruyereSecurity
- Gossip GlomersDistributed systems
- GPT Prompt AttackAI
- GPU Puzzles (WebGPU)GPU
- GreatFrontEndFrontend
- Grey HackSecurity
- Grid AttackCSS
- Grid CrittersCSS
- Grid GardenCSS
- guess-that-langMulti-language
H14 games
I4 games
J4 games
K5 games
L9 games
M4 games
N3 games
O7 games
P12 games
Q3 games
R24 games
- radarcontrol.ioJavaScript
- Regex CrosswordRegex
- Regex GolfRegex
- Regex HunterRegex
- regexleRegex
- regexle (ithea)Regex
- RegexLearnRegex
- RegexOneRegex
- RegHexRegex
- regxkcdRegex
- ReplicubeLua
- Retro GadgetsLua
- ReturnTrueJavaScript
- Reversing.krSecurity
- RingZer0 CTFSecurity
- Robo InstructusAlgorithms
- RobocodeJava
- Robot RumbleendedAlgorithms
- RoboZZleAlgorithms
- Root MeSecurity
- ROP EmporiumSecurity
- RosalindAlgorithms
- Ruby WarriorRuby
- RustlingsRust
S23 games
- S3 GameendedCloud
- SadServersShell
- SANS Holiday Hack ChallengeSecurity
- SchemaverseSQL
- ScreepsJavaScript
- Selector ShowdownCSS
- Service WorkiesJavaScript
- Shenzhen I/OAssembly
- SIC-1Assembly
- The Signal StateHardware
- Silicon ZeroesHardware
- SpaceChemVisual
- SpaceTradersAPI
- SpeedCoderTyping
- SPOJAlgorithms
- SQL IslandSQL
- SQL Murder MysterySQL
- SQL NoirSQL
- SQL Police DepartmentSQL
- SQL Squid GameSQL
- StrataScratchSQL
- Super Markup ManHTML
- SwarmHaskell