Ephinea Phantasy Star Online: Blue Burst runs on Steam Deck, but some additional configuration is needed compared with Windows. This step-by-step guide shows you how to run Ephinea on a Steam Deck, enabling all action shortcuts and improving camera control:
https://ragol.co.uk/guides/ephinea-steam-deck-setup/
Some additional settings I’m using to maximise battery life:
- Ephinea Launcher → Options → Set Resolution to 1280 x 800 (all other settings set to default)
- Steam → QAM → Enable Use per-game profile
- Set Frame Limit to 30 FPS
- Enable TDP Limit and set it to 7 Watts 5 Watts
- Enable Manual GPU Clock and set it to 700 MHz 200 MHz
Since Sega locked PSO to 30 FPS and it’s not a demanding game, you could probably push these even lower. Even with these settings, I’m getting 4+ hours of battery life
Edit: Pushed the settings lower.