It interferes with the Steam Deck's 60FPS cap and causes serious frame pacing issues.

If you use Many More Fixes, disable the built-in framerate limit in ConfigMachine.

Select 1280x768 as resolution in the game, it should fit perfectly on the Steam Deck's 1280x800 screen (minus some tiny horizontal black bars).

You can go back to game mode once everything is installed how you want it.

Put any mod you download into BepInEx/plugins in the game directory.

If you have the 'mods' button on the main menu, Realm loaded successfully.

Extract the contents of the Realm zip file into the game files.

Go to the game directory of Rain World through Steam.

Download the latest version of Realm from the releases page.

Open the drop down, find winhttp in the list, select it.

If the winecfg window doesn't open on some weird error re-install the game and start from zero, happened to me.

protontricks 312520 winecfg to enable library override for winhttp, so that Doorstop loads:.

protontricks 312520 win7 to set the wineprefix to windows 7, otherwise SSL things like CRS/Realm break.Install protontricks if you don't have it yet.Install Rain World on your Deck (duh), launch it once.(this probably applies to Linux in general not specifically Steam Deck) I recommend using Realm instead of BOI because Realm is completely ran through the game, no need to run BOI through Wine to install mods etc. Quick guide to setting up Rain World mods on the Steam Deck, with Realm as mod loader.

Rain world game download