Here's a very different and strange Xash3D mod - Quake Remake. This is a full port of Quake 1 to goldsrc via Xash3D. What makes it especially interesting in my eyes is just how much goldsrc DNA you can feel in the game. On the surface, it's basically the same game but if you have spent a decent chunk of time with Quake and HL1/other goldsrc games you'll probably be able to spot quite a few differences. Things like Scrags bleeding yellow and their projectile leaving the bullsquid impact, different screen effects for explosions, ability to spray logos and the list goes on. The movement is goldsrc rather than Quake so they're similar but definitely different. You'll also see some behavioral changes both for monsters and weapons. I think the Nailgun fires at the same speed as the MP5 so that's a big change right there. All of these changes feel incidental rather than deliberate. I think they're a byproduct of porting the whole game to goldsrc. There's also a number of mods and addons in moddb that I haven't explored just yet but definitely will. If you're a big Quake fan who has also played a lot of Half-Life 1 then I would highly recommend checking out this bizarre little port. Let me know what cool and strange things you guys find! I'm gonna play through all 4 episodes myself so I'll be sure to share some stuff I find as well :) Download link - moddb.com/games/quake-remake/dow… Mods/Addons - moddb.com/games/quake-remake/dow…
It is also have colored lightning, support for HL1 models and other cool stuff
A good mod, but I don't think it's legal if it includes assets of Quake from the get-go, which are copyrighted by id Software.