Dusk

As the retro FPS establishes itself as a genre and many examples come out that are decidedly less than the sum of their influences, Dusk's confident, coherent and elegant design is all the more remarkable, wearing its lineage proudly, but definitely impressive outside of it. If anything, the way the game was promoted as a Quake/Blood/Half-Life homage rather undersells it; in many ways, it's a refinement of those titles' formulas, and as singular in its qualities as any of them.