To get more Proton compatibility features using Decky Loader, you should enable Developer Mode in the Steam Deck's settings to maintain compatibility with Decky's updates and patches.

For those unsure of what's required, this guide outlines what gamers must do to run Sega Megadrive or Genesis games on the Steam Deck.

But, prior to that, you can try forcing the Steam Play compatibility tool to change the Proton version for your game. How do I force Steam Deck compatibility mode?

Valve is releasing a compatibility rating system for third-party devices that run Steam OS. The rating system will tell you if a game and its features are supported on Steam OS.

An update for the Steam Deck makes it even more Switch-like by making it more convenient to take it with you on the go. The patch notes for the April 5 client update say that Offline Mode will no ...