Mutagene
Published
Extremely smooth and scalable with the right Proton version. 55-60FPS average on medium settings with all effects enabled.
WARNING: DO NOT USE STEAM'S RECOMMENDED PROTON VERSION, OR GE-PROTON8-16.
Both have a VERY nasty crash bug that corrupts your save data, and it's caused by something vital to gameplay that only becomes available ~1.5-2 hours into the game.
I tried GE-Proton8-15 and GE-Proton8-6; both run it the same, so I'd assume that there are other GE-Proton8 versions that are stable. I tried a GE-Proton7 version and it failed to even launch under that.
Steam's recommended Proton version also renders the game incorrectly. Those GE-Proton8 versions don't have that issue, and render it correctly.
Please, please, PLEASE, do NOT use Steam's recommended Proton version or GE-Proton8-16. It'll make you think that the game doesn't work on the Deck at all--but it does, and extremely well, with the right Proton version. It's basically flawless with GE-Proton8-15, an absolute joy to play on the Deck. Don't be afraid to purchase it just because it's an Omega Force title; they actually did extensive testing to make sure it runs well on the Deck.
