Are there really no mods (good mods) for this wonderful game? Every classic game has a few mods to add to it, why can't I find any for this masterpiece? Seriously though, Nox is the single greatest game of my childhood.

There's only a lot of custom maps out. I can show you some, if you'd like. I own like 1-2 gigabytes of maps.

i remember a mod with enemy spawners that made the game something like gauntlet

You can take sources of UniMod from GitHub and make a new one.