Games like Ten Trials of Babel: The Doppelganger Maze

If you finished Ten Trials of Babel: The Doppelganger Maze, the closest matches are Solar Ash, Serious Sam 4, Impostor Factory, Space Pilgrim Episode I: Alpha Centauri and Space Pilgrim Episode III: Delta Pavonis. All 9 share its adventure genre and are ranked by how closely their themes and modes overlap.