Short answer
Yes. The official FAQ confirms that Active Matter works on Steam Deck, has native Linux support, and supports controllers on PC.
Confirmed platform support
| Question | Official answer |
|---|---|
| Does it work on Steam Deck? | Yes. |
| Is there native Linux support? | Yes. |
| Are PC controllers supported? | Yes. |
What support does not guarantee
Official support does not promise one fixed frame rate, graphics preset, battery-life result or control layout for every device. Performance can change with hardware, operating-system updates, game patches and graphics settings.
Use the current client defaults first, then lower demanding graphics options if performance is unstable. Check System Requirements before comparing a desktop Linux system with a handheld.
Steam Deck and cross-platform play
Steam Deck support is a device-compatibility question. Crossplay and progress sharing are separate features. See Crossplay for the current platform and cross-progression rules.