Second Tail
Two pet rats try to find their way home through a rainy city.
Links go to the official store or developer page. Last verified Nov 3, 2026.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- View demo on itch.ioitch.ioDemo · Early demo, in development (v0.5.2)Free
Plays in the browser on itch.io. No download.
Browser (no download) · Desktop · para1992
About Second Tail
A 2D platformer adventure about two pet rats, Sal and Ben, left alone in a large rainy city after their owner never returns. You switch between them: Sal can double jump and climb, Ben can dash and ram, and the route home includes boss fights. The developer says on the itch.io page that the code was written with Claude and Codex agents, directed and reviewed by the developer, and that AI was also used for art, story drafts and some music. It is an early free demo made in Unity 6, playable in the browser or downloadable for Windows on itch.io.
How it was built
Partially verifieditch.io "How it was made": the code was written with Claude (Anthropic) and Codex (OpenAI) agents, directed and reviewed by the developer. Story and dialogue were drafted with Claude from the developer's outline and then edited by the developer. The page does not say which Claude product was used.
itch.io "How it was made": Codex (OpenAI) agents were used alongside Claude to write the code. The split between the two is not stated.
One developer directing and reviewing AI coding agents. Characters, creatures and story illustrations were generated with AI image tools, then cut into parts and animated in code. Music combines CC0 Freesound recordings with tracks and effects generated with Suno.
- Engine / framework
- Unity
- Languages
- Not disclosed
- Team size
- 1 (solo)Developer Reportedpara1992
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“Code: written with Claude (Anthropic) and Codex (OpenAI) agents, directed and reviewed by the developer.”Verification notes: AI use, engine, platforms, version and languages from the developer's itch.io page ("One developer working with AI agents"). The page shows only relative dates (published 12 days before the check), so the release date is approximate. The game was not run.
Development history
Game performance
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itch.io
Not publicly available: Gross revenue.
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Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| Second Tail on itch.io para1992 | Store page | Not confirmed | Nov 3, 2026 |
