Leechbug

A 3D action game set in an alien sea, where you are a parasite trying to climb to the top of the food chain by possessing sea creatures. Gather a massive swarm of fellow parasites to attack bigger fish, while maintaining your distance from your swarm to avoid being fed on. Collect a swarm of parasites that follow you aroundPossess bigger fish by weakening it with a swarm attackTraverse the layers of an alien sea by possessing creatures that can survive that layer