Steam Deck Playable · Adventure · 2020
Does Family Mysteries: Poisonous Promises work on Steam Deck?
Mostly. Valve rates it Steam Deck Playable, with a few caveats.
Playable
Short answer: mostly. Family Mysteries: Poisonous Promises is rated Steam Deck Playable. It runs, but you may need to adjust settings or use the touchscreen or on-screen keyboard at times.
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Valve's Steam Deck test results
Valve's detailed notes for this game will appear here soon. You can see them now on the Steam store page.
Steam Deck status checked 9 November 2026.
About Family Mysteries: Poisonous Promises
- Developer
- Brave Giant LTD
- Publisher
- Artifex Mundi
- Release date
- 26 March 2020
- Genre
- Adventure, Casual, Indie
- Steam
- Store page
