All of my games are available to everyone for free.
However, if you enjoyed any of my games, a couple of bucks to cover website hosting costs and support my ongoing efforts would be gratefully appreciated. I think $2 per game enjoyed is a fair price. Thanks.
Dropbox (250MB Extra space)
Penzu (20% off yearly subscription)
Hole in the Wall Hosting ($10US per year for 300mb space, 30gb bandwidth)

Ahh, terrain! Nice!
As I can only offer that unintelligent comment at this time of night, I'd better also say: Even when Doom 3 came out, it was criticized for having a lot of really low-res textures. It didn't make much sense. In the first location, you can see a smudgy, blurry, low-res UAC logo on a couple of crates.