

Optimizing my UE5 indie horror game for Steam Deck. Getting ~40 FPS with Nanite & MegaLights active. How do the visuals/metrics look to you?
Hey everyone!
Iâm currently optimization-hunting for my upcoming first-person survival horror game built on Unreal Engine 5, specifically targeting the Steam Deck.
In my project, Nanite and MegaLights are forced on by default. After tweaking the settings to a Custom Medium preset (using Screen Space reflections/GI and TSR on Balanced at 1280x720), Iâm getting a stable 39â44 FPS (averaging right around 40).
As you can see from the performance overlay in first screenshot, RAM and VRAM usage are extremely low, leaving plenty of headroom. The second one shows how the atmosphere holds up with the spooky character model (Metahuman character) in the dark.
For those who regularly play modern indie games on the Deck:
- Do these frame rates and visuals look acceptable to you for a portable UE5 title?
- Would you prefer an unlocked 40+ FPS or a rock-solid 40Hz/40FPS lock for better frame pacing and battery life?
Would love to hear your feedback and technical thoughts!