Repel the Rifts is a roguelite tower defense set on a hostile alien world. You play as the Commander of a mining expedition that has gone wrong: inter‑dimensional creatures pour out of mysterious rifts each night and you must survive the onslaught, push your survey into unknown territory, and ultimately track down the source of the invasion. The game blends strategic tower placement with roguelite progression - each expedition can unfold differently as you unlock upgrades, artifacts, and commander synergies.