Tron 2.0 was great, and another game that has been lost to time. I got the Steam version working with a hack many years ago, but I doubt it would still work. That's another one that could use the same treatment as this version of NOLF!
Eh, LithTech was fairly impressive for the time, but I wouldn't necessarily call it good. It is incredibly fragile. I've been working on creating a library of games that works on modern platforms. LithTech games have taken at least 3-4 times longer because of frequent crashing.
It started with Shogo, but also No One Lives Forever, Tron 2.0 and F.E.A.R. left deep impressions.
What stood out was the combination of their well-done 3D engine with world building and art direction.
It wasn't the same from game to game, each game had their very distinct feel, and always interesting.
And I think few shooters have as good enemy AI as the goal-oriented[1] ones in F.E.A.R. (sadly not used in the sequels)
Good times, good times...
[1]: https://en.wikipedia.org/wiki/Monolith_Productions
[2]: https://www.gamedeveloper.com/design/building-the-ai-of-f-e-...