Knight Slaying Dust Bunnies
Arcade · ActionA browser platformer built in one evening inside an OpenAI Codex session.
CodexBrowserEnglish
No ratings yetSola Fide Technologies
Plays instantly in the browser
Play free — official siteNo-Engine HTML5 Games Made with Codex
VibeGameDB lists 19 games in this group, 18% of the 107 games on the No engine (HTML5) page. Each one has a source for how it was made. 18 are free or free to play and 1 is paid; 8 can be played in a browser. The most recently added is Wickward — The Last Light (November 2026).
- Games
- 19
- Free / paid
- 18 / 1
- Most used engine
- No engine (HTML5)
- Last updated
- Nov 5, 2026
Engines (top 5, where disclosed)
- No engine (HTML5)19
Platforms (top 5)
- itch.io11
- Browser8
- GitHub5
- App Store1
- Steam1
All 19 games
Ordered by editorial score, then player rating, then release date. Open a game for its sources.
Mini-Loot
RPG · StrategyA small turn-based auto-battler in the browser, built by GPT 5.5 in Codex.
CodexBrowserEnglish
No ratings yetCharles Berube
Plays instantly in the browser
Play free — official site
Nova Lancer
Action · ArcadeA short vertical-scrolling shmup whose code, art and music were made by Claude and Codex.
Claudeitch.ioEnglish
No ratings yethiyaman
Plays instantly in the browser
Play free — itch.io
Chip Fab Story
SimulationA real Famicom/NES game about running a chip fab from 1971 to AI superintelligence, wrapped for phone browsers. The developer says it was built entirely inside the Codex app, and lists Codex on the team.
Codexitch.ioBrowserEnglish
5.0/5itch.iodamijin
Plays instantly in the browser
Play free — official site
Torch Topple
Casual · ArcadeA swipe-to-swing physics game: knock the blocks out of a torch-lit tower without letting the head fall.
Claude Codeitch.ioEnglish
No ratings yetCaCC-Lab
Plays instantly in the browser
Play free — itch.io
ARGON DOMINATES
StrategySteer a swarm of thousands of argon atoms after your cursor and absorb every other noble gas in the chamber.
Claude Codeitch.ioEnglish
No ratings yetdexnazar
Plays instantly in the browser
Play free — itch.io
Candy Heist
PuzzleA turn-based Halloween stealth puzzle: lure the homeowners away, take every candy bowl and get back to the gate.
Codexitch.ioEnglish
No ratings yetnyxalium
Plays instantly in the browser
Play free — itch.io
Exile Alchemy
SimulationA cozy falling-sand factory game: an exiled alchemist digs, sorts and transmutes soil into gold, then builds machines to do it.
Claude Codeitch.ioEnglish
No ratings yetjpetree331
Plays instantly in the browser
Play free — itch.io
ハンコまっすぐ
Casual · ArcadeA one-minute phone game about stamping five approvals on a fictional request form, each tilted in a bow toward the president. The developer says the code was written with OpenAI Codex and Claude Code.
CodexBrowserGitHubJapanese only
No ratings yetOVELIS
Plays instantly in the browser
Play free — official site
Ember Relay
PuzzleA torch-and-mirror puzzle in the browser: rotate mirrors, wake every lantern and bring the signal home across three boards.
Codexitch.ioGitHubEnglish
No ratings yetAditya Mittal
Plays instantly in the browser
Play free — itch.io
Wonder Atelier
Casual · PuzzleDrag matching pieces together to craft items, then sell them or keep the treasures in your own collection room.
Codexitch.ioEnglish
No ratings yetRobin Noah
Plays instantly in the browser
Play free — itch.ioFree
Bellfoundry: Temper the Night
Casual · ArcadeHeat the metal, strike at the right instant, and forge five bells for one final chord.
Codexitch.ioEnglish
No ratings yetestona815
Plays instantly in the browser
Play free — itch.io
Wickward — The Last Light
Action · ArcadeA top-down action game where your torch is shelter, bait and weapon: throw it, leave it burning, then recall it through the shadows.
Codexitch.ioEnglish
No ratings yettraecneh
Plays instantly in the browser
Play free — itch.io
閉店後：深夜配達
ActionA one-finger, portrait loot roguelite for phones: a delivery robot works the night shift in a closed shop; a beginner developer directed mainly Claude Code, starting from an existing codebase.
Claude CodeApp StoreEnglish
No ratings yetportable nutrition
Mobile app
View on the App Store
字得其乐 WordJoy
Puzzle · Card Game · StrategyA Chinese-character deckbuilder on Steam: assemble character components on a 3×3 board and chain Five Elements skills; the developer says it was purely vibe-coded with Codex CLI and GPT models.
CodexSteamitch.ioEnglish
No ratings yetchunq
No download needed
View demo on itch.io
Loft Day
Adventure · CasualUnofficial · third-party IP
A point-and-click browser game made for a wedding website: wander ten illustrated rooms, throw a party and take a road trip; the README says AI agents write all the code.
ClaudeBrowserGitHubEnglish
No ratings yetBehdad Esfahbod
Plays instantly in the browser
Play free — official site
炎上消火ゲーム
Casual · Card GameA one-minute card game about putting out a social-media firestorm: match the right response card to each spark before the outrage meter hits 100. The developer says the code was implemented mainly with Codex.
CodexBrowserJapanese only
No ratings yetTechoes
Plays instantly in the browser
Play free — official site
牌序 · PAIXU
Card Game · StrategyUnofficial · third-party IP
A free, open-source browser poker roguelike that the developer says imitates Balatro's play style and was implemented with Codex.
CodexBrowserGitHubEnglish
No ratings yethahajing2019
Plays instantly in the browser
Play free — official site
生死时速 / Speed Chase
Arcade · CasualUnofficial · third-party IP
A free web tribute to the Kingsoft Typing game 生死时速: type an English passage to make a police officer or a thief run faster; vibe-coded with Codex.
CodexBrowserGitHubEnglish
No ratings yetCH0918
Plays instantly in the browser
Play free — official siteFAQ
- How many no-engine HTML5 games were built with Codex?
- VibeGameDB lists 19 no-engine HTML5 games whose developers say they were built with Codex, each with a source for that claim.
- How many are free?
- 18 of the 19 are free or free to play; 1 is paid. Prices are recorded per store.
- Which game was added most recently?
- Wickward — The Last Light, added in November 2026.