@Zerglingman @Suzu I play this game from time to time. It's a bit on the lighter end lore wise but it's pretty much just 40k with the serial numbers filed off. TL;DR for its lore is that humanity just arrived in the shittiest corner of the galaxy on colonies ships, the not Space Marines and the Not Sisters of Battle had a falling out and are at war, and the sector ala 40k proper is just a perpetual battleground. It's a game designed to cover pretty much every proper 40k and 30k unit option in one game, also a couple original factions, under slightly less obtuse rules so it's pretty fun.
https://www.onepagerules.com/games/grimdark-future