The running game can also call out to Galaxy and unlock, or not unlock, ingame content based on what it hears back. It's pretty difficult to imagine a definition of "digital rights management" that doesn't include this.
As far as I remember, the only games which optionally need Galaxy running are those will online multiplayer, and only if you want to play online. This is because the original developers shutdown their own servers for matchmaking or originally used Steam servers for that. GOG servers are only replacing those.
As far as I remember, the only games which optionally need Galaxy running are those will online multiplayer, and only if you want to play online. This is because the original developers shutdown their own servers for matchmaking or originally used Steam servers for that. GOG servers are only replacing those.