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GamersGate has a Crysostasis and NecroVision double pack on sale for $4.50. You can also purchase the games seperately for $3.86.
A hardcore edition of NecroVision is also available for $7.49. The hardcore version comes with NecroVision and the prequal NecroVision: Lost Company. Sounds kind of kinky :P. NecroVision is supposed to be a survival horror FPS. Only has a 63/100 on Metacritic. User score is also low at 5.3/10.
Crystasis is another surivival horror FPS. It has a 69/100 on Metacritic but the user score is much better at 7.7/10.
Also it looks like it’s 1C week at GamersGate. They put up a bunch of 1C packs up for sale today. Didn’t really see anything great prices on anything though. Of course I haven’t heard of more than half of the games lol.