Steam: http://store.steampowered.com/app/8930
done by aspyr media its a fully native port(as far as i can tell) runs well although it did not exit cleanly but that could have been because i played it for 10 hours straight :)
just finished a 10 hour session finished with a scientific victory then decided to play on and go for the rest :) the civilization series is one of the best games ever made so happy that its out for linux and its a decent port
also dont think i mentioned this but the witcher 2 was released a while ago but turned out to be a eON(closed source broken emulation layer like wine except way worse) was broken for me at launch but found a workaround(https://github.com/KillaW0lf04/The-Witcher-2-Issues/issues/2#issuecommen...) performance is playable but poor. was looking forward to it but after buying it i was quite disappointed lucky i only wasted 4 bucks on it.