Early Access Review
Let me get a few things straight: 1) this is not Dead Space, Doom, or Left 4 Dead, 2) this is not what I think of as a 'twitch shooter', though I may not have a full understanding of that term, 3) this is not a low-power horror game the likes of Outlast or Slender.
However, what this game does present on its own merit is a vicious, heavily armed, desperate tromp through hordes of the undead, in a space craft presumably designed by an engineering crew which assumed ship personnel would spring for an extra helping of bioluminescence in their rations. Unfortunately, this is not actually something which exists in the game world - just keep your flashlight handy.
With a brief experience (and a shotgun), one might begin to subconsciously downplay the presented risks. I am convinced that this was a ploy by the designers to lull the player into a false sense of security. Don't be fooled. There will always be more zombies, and that slavering clutch of bloodthirsty undead shambling toward you are actually moving a little faster than you first thought. It also seems you forgot to reload after the last encounter. I should likewise mention that your stun gauntlet is still recharging after liquefying the nearest zombie's face, and you're a dozen mobile corpses away from the next healing bay. Better tag that reload button and hope you can chamber a few rounds before they get into lunging distance, because there certainly isn't anywhere to run.