To play Stardew Valley with mods, you are required to boot SMAPI with either Steam, Xbox App, or GOG Galaxy.
# Launching SMAPI with Steam
You can do this with Steam by changing the launch options.
- Complete the SMAPI installation.
- Copy the Steam Launch Options in the installer.
- Open the Steam client.
- Locate Stardew Valley, right-click it and open Properties.
- Navigate to the General tab.
- Locate Launch Options, and paste the file location you previously copied.
To install mods on your Stardew Valley client, you can check out our Knowledgebase article here.