VibeGameDB lists 26 games in this group, 26% of the 100 games on the Codex page. Each one has a source for how it was made. The most common engine is No engine (HTML5) (31%). 23 are free or free to play and 1 is paid; 4 can be played in a browser. The most recently added is Wickward — The Last Light (November 2026).
Ordered by editorial score, then player rating, then release date. Open a game for its sources.
A Chinese-language pixel life sim with branching timelines, mostly coded with Codex.
Plays instantly in the browser
Play free — official site
Two pet rats try to find their way home through a rainy city.
No download needed
View demo on itch.io
An open-source ASCII life sim where you age, marry, run a business and play on as your heirs.
Download required
View on itch.io
A dark-comedy household management game on a fake retro family computer: feed the family, chase reward points, outrun the debt.
Plays instantly in the browser
Play free — itch.io
Care for a cat and merge materials into beds and toys for a small cottage.
Plays instantly in the browser
Play free — itch.io
A side-scrolling pixel bullet hell whose code was generated by Codex.
Plays instantly in the browser
Play free — itch.io
A browser simulation game whose code was largely written with AI tools such as Claude Code and Codex.
Plays instantly in the browser
Play free — itch.io
A short vertical-scrolling shmup whose code, art and music were made by Claude and Codex.
Plays instantly in the browser
Play free — itch.io
A 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.
Plays instantly in the browser
Play free — official siteA free feudal sci-fi sandbox strategy RPG for the browser: lead a minor noble house across a living campaign map and fight real-time squad battles. The developer says Claude Code writes the code.
Plays instantly in the browser
Play free — itch.io
Tap machines to make screws, grow a factory and launch rockets across six stars in this free browser idle clicker; its developer says Claude Code implements it and Codex reviews.
Plays instantly in the browser
Play free — official site
A swipe-to-swing physics game: knock the blocks out of a torch-lit tower without letting the head fall.
Plays instantly in the browser
Play free — itch.io
One torch and your shadow: move the light to cast a path, then send your shadow on ahead.
Plays instantly in the browser
Play free — itch.ioHelp little demon PIP run a Halloween costume shop in a human town, matching costumes to customers' clues, in English or Traditional Chinese. The developer says Claude wrote the code and tests.
Plays instantly in the browser
Play free — itch.io
A turn-based Halloween stealth puzzle: lure the homeowners away, take every candy bowl and get back to the gate.
Plays instantly in the browser
Play free — itch.io
A torch-and-mirror puzzle in the browser: rotate mirrors, wake every lantern and bring the signal home across three boards.
Plays instantly in the browser
Play free — itch.ioA 3D survival-horror expedition through torchlit catacombs with no combat: when your flame dies, the Hunter starts searching for you.
Plays instantly in the browser
Play free — itch.ioHeat the metal, strike at the right instant, and forge five bells for one final chord.
Plays instantly in the browser
Play free — itch.io
A top-down action game where your torch is shelter, bait and weapon: throw it, leave it burning, then recall it through the shadows.
Plays instantly in the browser
Play free — itch.io
A 1920s fishing and exploration game around an uncharted archipelago: chart the islands, fill the hold and get home before the rum-runners come out after dark. The developer says most of the code was written with Claude in Claude Code.
Demo available
View demo on itch.io
A short 3D action prototype in a ruined sky temple, made in one day by Codex as a test of building a Unity game from natural-language instructions.
Plays instantly in the browser
Play free — itch.io
A 3D browser roguelite: a small brass machine with a sword, a gun and a laser cuts its way out of a castle-machine.
No download needed
View demo on itch.io
A 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.
No download needed
View demo on itch.ioWork the copy desk of a 1970s-style newspaper and type six photo assignments into a finished edition before the presses run. The credits say the code was written by GPT Astra through Codex.
Plays instantly in the browser
Play free — itch.io
A childhood paper-and-pencil rock-paper-scissors game rebuilt in 3D papercraft: win throws, build your fortress, then knock theirs down.
Plays instantly in the browser
Play free — itch.io
A compact incremental boss rush: every click deals damage and builds CHARGE for a growing automatic arsenal.
Plays instantly in the browser
Play free — itch.io