The sound, art, and overall clean feel of this game is so impressive that I don't even mind that there's not really a clear story or any crazy interesting gameplay mechanics. The low poly art style is phenomenal and it's clear from the concept art included in the post that you accomplished visually what you set out to do. I think a larger map with a clear goal and maybe some puzzles to solve, rather than a set amount of time to survive, would make this a game I would easily want to play for an hour or two, at least.