Since I've lost hope Underhell (HL2 mod) will be it's own standalone game or will have continuation in the bear future, I played it again after 6 years.
And while it obviously has it's flaws, since it was done by a single programmer, this is beyond any other recent horror games. There isnt anything close right now that could compete with it.
It's rare that I move slowly, check every corners, close the doors behind me, try to memorize the levels (there is no map in EQ, just on the wall sometimes) and conserve ammo.
Graphics are solid, since I just love HL2 engine and physics, it still looks good after 15 years. Music is great. Voice acting and dialogues are also good, considering theyre done by regular people and volunteers. Combat is solid, same for mechanics.
If you havent played it already and like horror, just do it. You dont have to own half life 2, just steam and download free SDK tools and the game will work.
And if you do play and in case you dislike the beginning, just power through. I liked the beginning (its tutorial of some kind, with much more action than horror), but one part was truly boring, but it didnt last long. The rest is just great.