>>11812957Project Xenome is pretty solid so far and it's in that pic. The start isn't too promising because you might go "ah it's just Black Mesa" but it picks up quickly. I've also played Project Zephon (icy techbase themes, very recommended if a bit spacey at times) and Deju Vu - Gryphon Revisited (classy 'original Unreal' callback campaign, pretty decent if you're feeling nostalgic).
https://www.unrealsp.org/index.php/articles/reviews I've been using this site for recommendations, I don't read much into the reviews themselves.