A downloadable game

an old style fps which takes heavy inspiration from doom and some ps1 games. in an apocalyptic world where all humans have moved to the sewers or were corrupted, by the same  dark force that started it all, one warrior will have to save the rest of their race and possibly the world.  navigate, fight, heal, run, climb and purify your way to victory and  the safety of the human race. can you save the human race and banish the power back to where it came from? to download go to https://arcade.makecode.com/# and click upload then select your file. DO NOT EDIT THE CODE THE GAME.