Monster Rancher 4 is a strategy, life simulation video game for Sony's PlayStation 2 console. Produced by Tecmo, it is the fourth installment of the Monster Rancher series. The game allows players to generate and raise their customized monsters, training them to participate in high-stakes battles against other creatures. Gameplay involves exploring the world, encountering creatures and objects to develop your monsters, and battling rivals in a turn-based combat system. Players also need to manage their ranch, create and maintain training facilities to boost their monsters' stats. The game includes hundreds of different monster types, providing plenty of variety for players.