Eh, it's on OK game. I prefer Minecraft, of course, but I can't get one question out of my head... Why is it that Minecraft has bigger worlds, more block types, dynamic lighting and fluids, and npcs, and yet it runs smoother than this game, which has a few blocks and a pretty limited world. Honestly, I've got a decent computer and this thing freezes every five minutes for about 30 seconds. Really? Freakin really?
Well put together, and you got most of your lore right. 5/5, just cause I'm generous. However, you may want to see what you can do about some more content. As Linkinmii stated, it does get kinda boring.
But yea, if I wanted to play a game that rivals Madness Interactive in graphical themes, allows you to use a large variety of different weapons, and features infinitely spawning enemy's who rarely drop health for me, I would play any one of the Thing Thing games. At least they have a story to them. Slightly.
 "400 Years"){kind=icon}
 "Tower of Greed"){kind=icon}
 "Age Of Wind"){kind=icon}
 "Cubelands"){kind=icon}
 "Runner"){kind=icon}
 "Dragon Age: Journeys"){kind=icon}
 "Shorty"){kind=icon}
 "Plazma Burst: Forward to the past"){kind=icon}