no way. literally no way... i've installed Unreal Torunament GOTY - it works. try to install UT2004 - cannot iknstall due to unknown error which occurs at 95% of installing... opened GOG with admin rights, added stuff to firewall,(even tried turning it off entirely), turned off anitivurs and added gog files to whitelist, made installation folder on the folder in the disk, reinstalled it numerous times. still. doesn't. work. can not install this. windows 10. it doesn't even give me exact info. last info it gives is "moving files"... maybe there is some kind of install log?

i literally could buy pepsi instead of UT2004

oh and yeah i can't even uninstall it through GoG galaxy because of E15 error

well i guess piracy is the best solution

EDIT: IT'S NOT

Best solution is a standalone installer. But Steam kiddies can not into installing games without a client software, LOL.

well, i found out about this thing having installer on their website and i am installing it now
and i LOLd from dude who commented

because steam kiddie is literally me