SM extension to patch engine to let standalone CS:GO (4465480) players join a standard AppID 730/(740) server.
Recreated since no public source existed.
USE AT YOUR OWN RISK!
Notice that using this will let players with VAC/Game bans on CS:GO/CS2 (730) join your server, unless you add extra checks via something else!
Users joining with standalone CS:GO will most likely not trigger steamauth properly.
*Usage is not recommended, as this allows for misuse and impersonation on servers.
It is better to instruct users to run csgo.exe externally from Steam (with -steam) or as a "non-Steam game", to get it to run as AppID 730.
Or to just use the csgo_legacy beta on cs2...
mkdir build && cd build
python ../configure.py --sm-path ../sourcemod --mms-path ../metamod-source --targets x86
ambuild