Does each map have an ending?

[Gunsaremagic]

can you actually beat a map/final boss?
What about randomly generated maps

[burningmime]

All the official maps have one or more bosses. You can fight it multiple times on different difficulty. And of course, you can keep playing on the map after you've beaten the boss.

All the story maps (Island, Scorched Earth, Abberation, Extinction, Genesis, Genesis 2) have an actual like story and end boss there, which is unique to the map. Lost Island and Crystal Isles each have their own unique boss, too. Center, Ragnarok, and Valguero have bosses from the other maps but not a special boss of their own.

Randomly generated maps are no longer supported; I don't think they've worked on that since like 2017. They're hopelessly broken.