The game itself works fine, the difficulty buildup in the first few levels is done well, you learn basic movement and shooting in the first three levels, but at later points in the game you will need to have refined these things to an almost maddening point where it feels like making it through a level was up to luck and a coin flip.

If you are a 100% completionist looking for a game to add to your list then pass this game up, as of me writing this review one of the achievements is broken (the complete a level with 1 HP left achievement), and makes it impossible to 100% complete the game (unless you make use of a certain program).

I also found that the presentation of the game was not handled well, I feel that if the game was made in a 2D side-view or 2.5D/3D Isometric perspective instead of the 3D 1st perspective view, it might have felt better to play because at some points i felt like i was staring at wall textures for more than half of the level.
furthermore the animation for the character inspecting his gun gets in the way of the players view, and not being able to see a soldier/skeleton coming towards you can be rather frustrating at times.

A "restart level" button would also have been nice for when you screw up or get stuck on a level and can't off yourself. Also a few options would have been nice to have in the game, like a brightness slider or volume control for ambient sounds and such.

And the final gripe i have with this game is that there is absolutely no music, nothing in the background or on the menu to set the tone for this game, a simple melody or a single instrument could make the difference between something that's meant to instill a feeling of dread or give a sense of intrigue. As it is there is no way to tell what this game is meant to make you feel (other than the feeling of frustration).

The game itself works fine, the difficulty buildup in the first few levels is done well, you learn basic movement and shooting in the first three levels, but at later points in the game you will need to have refined these things to an almost maddening point where it feels like making it through a level was up to luck and a coin flip. If you are a 100% completionist looking for a game to add to your list then pass this game up, as of me writing this review one of the achievements is broken (the complete a level with 1 HP left achievement), and makes it impossible to 100% complete the game (unless you make use of a certain program). I also found that the presentation of the game was not handled well, I feel that if the game was made in a 2D side-view or 2.5D/3D Isometric perspective instead of the 3D 1st perspective view, it might have felt better to play because at some points i felt like i was staring at wall textures for more than half of the level. furthermore the animation for the character inspecting his gun gets in the way of the players view, and not being able to see a soldier/skeleton coming towards you can be rather frustrating at times. A "restart level" button would also have been nice for when you screw up or get stuck on a level and can't off yourself. Also a few options would have been nice to have in the game, like a brightness slider or volume control for ambient sounds and such. And the final gripe i have with this game is that there is absolutely no music, nothing in the background or on the menu to set the tone for this game, a simple melody or a single instrument could make the difference between something that's meant to instill a feeling of dread or give a sense of intrigue. As it is there is no way to tell what this game is meant to make you feel (other than the feeling of frustration).