What inspired this? I was recently browsing through my steam games looking to play some oldies and I found Darwinia, one of my classic all time favorites. I remembered how Chris used the doom pinky demon sprites in one of his developer diaries to represent the darwinians in a very early alpha.
Things have now officially come full circle.

https://puu.sh/trigv/a8fc96b1b8.png <--To prove it really is in Doom.
Hell, the OpenGL renderer even has things like bloom in it. No distortion waves yet though, someday... Still, that's only visual goodness.
This is still very much a WIP and I've only recently begun it.