Once Upon
An AI-driven narrative RPG that grows alongside your focus sessions. Set a real-life task, start a 25-minute Pomodoro, and return to a fresh chapter written while you worked. Choose a fantasy cooking journey or a sci-fi survival mystery. Free AI built in.
Last Updated: 6/4/2026
| Release Date | 5/24/2026 |
| Developer | Entropy Cat Studio |
| Publisher | Entropy Cat Studio |
| Steam App Id | 4604180 |
Once Upon
An AI-driven narrative RPG that grows alongside your focus sessions. Set a real-life task, start a 25-minute Pomodoro, and return to a fresh chapter written while you worked. Choose a fantasy cooking journey or a sci-fi survival mystery. Free AI built in.
Last Updated: 6/4/2026
- Windows
- Mac
- Linux
About Once Upon
Once Upon is a RPG, and Free to Play game developed by Entropy Cat Studio. On 5/24/2026, it was released on the Steam Store by Entropy Cat Studio.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Once Upon supports the following features:
- Family Sharing
- Single-player
- Steam Cloud
From the Steam community, Once Upon has been tagged with the following user tags:
- Text-Based
- Interactive Fiction
- Multiple Endings
- Story Rich
- Free to Play
- RPG
- Choices Matter
- Artificial Intelligence
- Singleplayer
Media & Sceenshots
Watch the featured video for Once Upon and see the latest screenshots from the Steam Store.
Once Upon DLC
Once Upon has 1 downloadable add-on available for purchase on Steam which is Once Upon: Kaleo-7 Cyber Explorer.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Once Upon: Kaleo-7 Cyber Explorer | DLC | 5/31/2026 | Steam Charts |
Supported Languages and Localizations
Once Upon is available in 2 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
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Find a new game to play just like Once Upon through our curated lists. Steambase uses Steam's User Tag and Genre system (and other game stats) to curate a list of the best and most loved games similar to Once Upon.
Genres
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Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in real-time to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
Once Upon data has been sourced from:
- Valve Corporation. (2026, June 4). Once Upon on Steam. Steam Store.
- Valve Corporation. (2026, June 4). Once Upon. Steam Community Hub.