For whatever it's worth, Half-Life (yes, the first one) is now available for Linux on Steam. It's in beta and doesn't show up as Linux compatible on the store page, but if you already have it, or buy it, it'll show up on the list of Linux games and can be installed and played. |
I ran into a couple of serious bugs two days ago when I first installed it (couldn't look up/down with the mouse, got a black screen after I got teleported during the incident and some other minor ones), but there's been an update since and all my problems are fixed.
Looks really dated, but is still excellent. Doesn't even make my laptop's fan spin much faster. CPU monitor shows CPU usage of around 35% on one core.
Oh, and Counter Strike is also native now.