Heart of the Motherland (The Russian Sleep Experiment)

Russian researchers in the late 1940s kept few people awake for fifteen days using an experimental gas based stimulant. They were kept in a sealed environment to carefully monitor their oxygen intake so the gas didnt kill them, since it was toxic in high concentrations. Try to get out from hellish labs alive and find out all the secrets that this place is keeping. Control: W A S D - movement SPACE - interact, explore CNTRL - shoot