Parasitize and become stronger! A parasitic takeover roguelike RPG where you survive the dungeon with stolen bodies! Become a parasitic slime and survive the dungeon! In Monster Gacha ~Parasite Survivor~, you, the player, become a mysterious monster that can be parasitized, ``Parasite Slime''. This is a roguelike RPG centered around parasitism and takeover, in which you change bodies through parasitism while fighting monsters that appear in dungeons.

If you weaken the enemy and successfully parasitize it, you can use that monster's body. By switching to stronger monsters, you can take on even more dangerous enemies. A cute monster girl, a powerful boss-class monster, and many flashback scenes released by parasitism. This is a miraculous cross work that combines elements of the "Monster Gacha Series" where you don't know what will come out, and the "Parasite Series" where you parasitize and take over!