let's make a list of games which shares an aspect of Unclaimed World for inspirational purposes on the developer site and procrastination for the rest of us

I will start with some I know and ones already mentioned on these forum :
Atmosphere
- War Wind , War Wind 2
Video
Detailed alien world, first title didn't even featured humans. Many local lifeforms, puzzle like gameplay. - Command & Conquer: Tiberian Sun
Video
Interesting alien creatures, story and technology. - Genewars
Video
Collect and breed alien lifeforms, a bit similar visuals. - WarBreeds
Video
RTS based on plant breeding and genetic engineering, no humans involved. - Original War
Video
forum topic
- Noctis
Video
Nothing, but exploring a whole universe. - Star Control ||
Video
Nice humorous story telling, much voice acting and many aliens.
- Dwarf Fortress
Video
Probably the most complex simulation mechanism in a game, so complex it already produces interesting stories itself.
- ?
