I downloaded the game files, mounted the .iso files and added the game to setup.exe to my steam library and installed the game under the mountpoint. When i click play in steam i just get back to the installer. Running the SkyrimSe.exe in steam(located in the CODEX directory) doesnt work. I use Arch Linux.
Your comment runs antithetical to this server, but I agree. Skyrim has been out for 12 years and it’s surprising that OP doesn’t already have like 3 copies of it. Sometimes, piracy really is just a service problem.