HALDANE-4
Horror · AdventureA short ASCII horror story about a lone descent beneath the Antarctic ice.
Cursorブラウザ英語のみ
評価はまだありませんDenis Bondarev
ブラウザですぐ遊べる
無料で遊ぶ（公式サイト）Genre · Horror
AI-Made Horror Games
Horror games built with AI coding assistants. Atmosphere, sound and pacing carry the genre, so these projects usually pair AI-written code with hand-made art and audio.
- Games
- 10
- Free or free to play
- 8
- Solo developers
- 4
- AI tools used
- 6
AI tools
- Claude3
- Codex3
- Claude Code2
- Cursor1
- 非公開の AI ツール1
- Gemini CLI1
Platforms
- Browser4
- itch.io3
- Steam3
Genres
- Horror10
- Adventure3
- Simulation3
- Puzzle2
- Strategy1
- RPG1
- Action1
Compare
Key facts side by side. Open a game for sources and provenance labels.
| Game | Main AI tool | Platforms | Availability | Team | Price |
|---|---|---|---|---|---|
| HALDANE-4 | Cursor | Browser | Playable now | Not disclosed | Free |
| Hack://TheSystem | Claude | itch.io | Playable now | Not disclosed | Free |
| The Carcass | Claude Code | Steam | Playable now | Solo | $9.99 |
| KEEP IT ON HER | 非公開の AI ツール | Steam | Playable now | 2 people | $2.99 |
| Almost Surgery | Codex | Browser | Playable now | Not disclosed | Free |
| SIS - Special Incidents Service | Claude | itch.io | Playable now | Solo | Free |
| Le Manoir Blackwood | Claude | itch.io | Playable now | Not disclosed | Free |
| あと一番出口 | Gemini CLI | Browser | Playable now | Solo | Free |
| Effective Immediately | Codex | Browser | Playable now | Not disclosed | Free |
| FIRST LINE | Claude Code | Steam | Demo | Solo | Free demo |
All 10 games
Hack://TheSystem
Puzzle · HorrorA short, unsettling text-based hacking game that the developer says Claude made from one prompt.
Claudeitch.io英語のみ
評価はまだありませんWietske
ブラウザですぐ遊べる
無料で遊ぶ（itch.io）
The Carcass
Strategy · RPG · HorrorA keyboard-only ASCII colony sim inside a dead god's corpse, coded mainly by Claude Code and Codex.
Claude CodeSteam日本語対応
23%SteamPiqFocus Interactive
ダウンロードが必要
Steam で見る
KEEP IT ON HER
Horror · AdventureCo-op night-shift horror at Sweetie's Motel: fill the guests' requests and keep your flashlight on Sweetie so she can't move.
Undisclosed AI toolSteam日本語対応
評価はまだありませんJust2Dudes Studios
ダウンロードが必要
Steam で見る
Almost Surgery
Simulation · HorrorRun an unlicensed basement surgery for aliens: saw, cut and electrocute for money. Vibe Jam 2026's “Most Cursed” award.
Codexブラウザ英語のみ
評価はまだありませんRagim Musakaev
ブラウザですぐ遊べる
無料で遊ぶ（公式サイト）
SIS - Special Incidents Service
Horror · SimulationRomania, 1998: process ghost reports on a Windows 98-style workstation. The anomalies don't follow the rules.
Claudeitch.io英語のみ
評価はまだありませんSebastian Pavel
ブラウザですぐ遊べる
無料で遊ぶ（itch.io）
Le Manoir Blackwood
Horror · AdventureA horror gamebook for the Commodore 64: stranded at a cursed Maine manor in 1984, you have to survive until dawn.
Claudeitch.io日本語非対応
5.0/5itch.ioCommodore 64 Mania
ダウンロードが必要
itch.io で見る
あと一番出口
Puzzle · HorrorA short first-person anomaly game that starts at the very last stage of “some game”; its developer says Gemini CLI wrote all the code and drove the Unity editor.
Gemini CLIブラウザ日本語対応
評価はまだありませんryuryu
ブラウザですぐ遊べる
無料で遊ぶ（公式サイト）
Effective Immediately
Action · HorrorA surreal office shooter: a burned-out worker blasts a way out of a collapsing corporate nightmare.
Codexブラウザ英語のみ
評価はまだありませんinsomni4_jpg
ブラウザですぐ遊べる
無料で遊ぶ（公式サイト）
FIRST LINE
Simulation · HorrorA retro office mystery about a 2001 helpdesk job, ticket deadlines and a support call from a seventh floor the building does not have.
Claude CodeSteam日本語非対応
評価はまだありませんFBento
体験版あり
Steamで体験版を見る