Access desktop mode and install Lutris 0.5.16 from the Discovery app.
Next, install the Warehouse app and disable automatic updates for Lutris. Please note, the game has been tested with Lutris 0.5.16. Subsequent versions may not support Steam Deck controls. If you find a different version installed, you'll need to install version 0.5.16 using Warehouse.
📥 Download the game from here https://www.pessmokepatch.com/2024/10/spfl25.html you can skip the v2 patches.
You need to download all the 11 parts in the same folder, and then compact by opening the first file of the sequence.
Download this file https://github.com/eskay993/gamefiles/raw/main/sp-football-life-2025/sp-football-life-2025-win.zip and unzip it. You will need the installer script that’s inside in a moment.
Add a new game to Lutris with the [+] button at the top left, then choose Install from a local install script, and use the yaml script you got before.
Select the "Add to Steam" checkbox and proceed with the installation by advancing when required.
As resolution indicate 1280x800. As gameplay there are several options, leave the default one (the first one) if in doubt.
Once installed, the game will be physically in home/games/sp-football-life-2025 with all the normal Windows path to follow. Add a shortcut to the final folder of the game because you will use it for patches and updates.
Download from here and extract.