Grab the latest release, and extract it into your SMAPI Mods folder (.../Mods/DoomValley/). You will need a WAD file (game data). If you don't own the game, the ...
You can run the .exe file directly to use the profile manager, or if you want to open it through Steam, complete the following steps: In your Steam library, go to Stardew Valley Press on the gear icon ...