There's alot of neat Quake stuff on Github. Another repo of interest may be this one: https://github.com/SpiritQuaddicted/quake-code-archives -- I have a local copy of tons of RuneScape code: server implementations, clients, bots, etc. May need to get it presentable and posted up sometime.
I would love it if you could share the RS archives, or at least get them in the hands of something like the Internet Archive. I also collect old cache dumps and RSPS repos but I've never seen a high quality archive.