I have really enjoyed playing this game, it's much better than most fps games on itch, and it also runs WAY better. I don't know if you are still updating this game, but if you are, perhaps multiplayer could be added in the future?
Glad you liked it (and that it runs well)! The game is still technically being updated, albeit extremely slowly. Unfortunately, the current code is not optimized for a multiplayer mode. The only way I see it getting one, would be to make a new game in this spirit (which is not an option right now).
