Second Tail
Adventure · ActionTwo pet rats try to find their way home through a rainy city.
Claudeitch.ioEnglish
5.0/5itch.iopara1992
No download needed
View demo on itch.ioUnity Games Made with Codex
VibeGameDB lists 5 games in this group, 17% of the 29 games on the Unity page. Each one has a source for how it was made. 4 are free or free to play and 0 are paid; 1 can be played in a browser. The most recently added is SLOP CITY (November 2026).
- Games
- 5
- Free / paid
- 4 / 0
- Most used engine
- Unity
- Last updated
- Nov 4, 2026
Engines (top 5, where disclosed)
- Unity5
Platforms (top 5)
- itch.io3
- Steam1
- Browser1
- GitHub1
All 5 games
Ordered by editorial score, then player rating, then release date. Open a game for its sources.
Nothing Special: A Shooting Game
Action · ArcadeA side-scrolling pixel bullet hell whose code was generated by Codex.
Codexitch.ioEnglish
No ratings yetnekodaman
Plays instantly in the browser
Play free — itch.io
Caldra
Card Game · StrategyA free online PvP deckbuilder where you trade cards for coins mid-match.
CodexSteamEnglish
66%SteamDolphin Star
Download required
View on Steam
RELIC - The Last Light
ActionA 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.
Codexitch.ioJapanese only
No ratings yetあれぐろもると
Plays instantly in the browser
Play free — itch.io
SLOP CITY
Simulation · AdventureUnofficial · third-party IP
A free, open-source first-person 3D city with 40 kinds of jobs, salvage, a pawn shop, a subway and the developer's TikTok videos on its billboards. Created with Codex, per the developer.
CodexBrowserGitHubEnglish
No ratings yetMachine Publishers, LLC
Plays instantly in the browser
Play free — official siteFAQ
- How many Unity games were built with Codex?
- VibeGameDB lists 5 Unity games whose developers say they were built with Codex, each with a source for that claim.
- How many are free?
- 4 of the 5 are free or free to play; 0 are paid. Prices are recorded per store.
- Which game was added most recently?
- SLOP CITY, added in November 2026.