Games like Warhammer 40,000: Dark Millennium

If you finished Warhammer 40,000: Dark Millennium, the closest matches are The Outer Worlds, Tom Clancy's The Division 2, Remnant: From the Ashes, Fallout 76 and SpellForce: The Order of Dawn. All 7 share its role-playing (rpg) genre and are ranked by how closely their themes and modes overlap.