[mmastrac]

This isn't really convincing. The P, G, R and Y are significantly different and appear in both the Quake sample and the font sample. S is significantly flatter. The cherry-picked examples are the most basic letters and likely to have parallel evolution because of the constraints of that design space.

I think it's more likely to be a hand-crafted font, inspired by the general layout of stencil letters but no more than that.

[yencabulator]

The N is completely different; Quake has a one-piece N, the font slices it into three separate parts.

[muglug]

Yeah — a bunch of inspirations for this. Wouldn't be surprised if the designer was inspired by newly-released Emigre typefaces like Democratica.