Monster Train is an engaging Roguelite Deck Building game available on iPhone, where players defend the final burning pyre from celestial forces. The game introduces a unique strategic layer with three vertical playing fields, allowing players to engage in complex tactical decisions. Players can unlock over 250 cards and explore five distinct Monster Clans, each offering unique gameplay and ten levels of card unlocks.

The game emphasizes replayability, ensuring that no two playthroughs are alike. Players can upgrade powerful Champions, strategize their deck-building by selecting primary and supporting clans, and explore various locations that yield different benefits. Additionally, the game features expansions like Wild Mutations and Friends & Foes, along with the new Last Divinity DLC, which introduces a new clan and additional challenges, enhancing the overall gaming experience.