Here is an overview of the game, via Team17:
Featuring three-versus-three turn-based combat, a ‘metroidvania’-like world ripe for exploration and discovery, and many dozens of monsters to tame and collect along the way, Monster Sanctuary challenges players to become the ultimate creature keeper and uncover the truth behind a mystery that threatens the harmony between humans and monsters.
Monster Sanctuary sees players harness the powers of each of the monsters they manage to collect, unlocking unique skills trees that enable the party to explore and traverse the variety of environments they discover. The game’s deeply tactical combat relies on different configurations of monster combinations for success, while the promise of undiscovered secrets and rare monster eggs means rewards will be unlocked as the story-drive adventure progresses.
Watch a new trailer below.