VN Ren'Py New Earth

New Earth is set in 2121, where a group of students wins a trip to the Kepler-452 system and accidentally outlives the Earth. As leader, you steer humanity's last colony.

The 3DCG visual novel ends in three flavours: Tyranny (harem, all women yours), Democracy (sharing, everyone gets a turn), or Anarchy (full NTR, a different leader rises and you become the loser). The endings are explicit about the kink they serve.

A sci-fi cuckold game with one of the cleanest three-path designs in the niche.