Log in to your panel at https://game.polisystems.ch or through the client area (check your emails if the account is not set up yet).
Click Manage to open your Factorio server overview.
Go to Configuration → Startup Parameters.
Choose the desired entry in Factorio version (latest, experimental, or a custom build from the available versions list) and click Update Startup Parameters.
Switch to the Advanced tab (two buttons to the left), click Reinstall, and confirm. We recommend downloading your saves first, but the process only refreshes the Factorio binaries.
Wait 10–30 seconds, then open System → Console and start the server. Repeat the reinstall step whenever you want to pick up a new experimental build.
