For people who came to the comment section to figure out how to play/what is going on - I think I eventually worked it out:
- Hold Space to move (towards you cursor) - Left click on an object to pick it up when you are close - Right click to put it down - There are automatic guns and rocket launchers and torches that you can position around the room - Bad guys come out from the red lights at the side of the room - The grey cogs should be put in the shute
To the creator - this is a cool game, but you really need to convey what you're meant to do/how to do it! It took me a good while to figure out how to do anything, and I nearly just rage quit after dying 5 times in a row not knowing how to do anything, or what I was meant to do.
Once I eventually figured it out: it's pretty cool! I liked the light mechanic where most things are dark, and the fact there are hidden guns in the dark that you can use. Pretty neat game idea and genuinely had a lot of fun playing it
(edit: looks like you can also buy more guns/resources using the switches in exchange for 5 cogs)