stratagus (and all warcraft2 clones for linux):
My all time favorite is Deus-Ex ( not DX:IW ). Closed source title but the only one I played through so many times I can't count it :D .
EDIT: Oh... just noticed... native only. Well then I would go for the original Unreal Tournament. Although DX uses the same engine it would have been possible to have a Linux client... but I think Loki had not been around back then.
I think you'll find that it was being ported by them... ;)
What I'd been told by several parties at Loki that the code was almost to a beta stage when Loki pulled the plug on everything.
Indeed. Deus Ex is one of my favorite games ever... If they were to release a Linux version any time soon, based off that code, I would totally pay premium for it... even after all these years.
Indeed... especially since there are some nice mods out there like HDTP or NewVision ( HDTP = high definition texture pack, and NewVision adds things like dynamic shadow casting and alike ).
By the way... why exactly did they go down with man and mouse? They just got poof and that was it.
Loki did a series of BAD management decisions which were their own undoing. They actually had a decent selection of games, but had way too many projects going at the same time (Svartalf could probably elaborate much more and with greater detail than I), low sales rates, etc. Loki's game selection back in the day was top notch and included some of the greatest AAA titles of their time. UT99 was one of them, FAKK2, SoF 1, and they were working on DeusEx and many others.
Blood Frontier, the grenades are cool, the flamethrower is hot and the bots are intelligent.
UrbanTerror，Tremulous，Nexuiz，Spring Engine based mods，Hedgewars，Wesnoth，Savage XR，Q3Rally，Tribes2，Lincity-NG，Flying Guns，Ultimate Stunts，Mania Drive and more