Space | Marine 1 Steam

No in-game slider, but use Flawless Widescreen (supports 21:9 & FOV up to 90).

The game has native Xbox/PlayStation prompts, but some Steam Input issues exist. 👉 Use Steam Input “Gamepad” preset (not “Keyboard & Mouse”). Disable PlayStation/extra overlays if buttons don’t respond. Space Marine 1 Steam

Here’s a helpful, concise post for on Steam: 🔧 Getting the best experience in 2026 No in-game slider, but use Flawless Widescreen (supports