Cassette Beasts is a pixel adventure game where players will have to go on a long journey. It is necessary to explore the vast game world by moving through isometric locations with the main character. You will have to participate in turn-based battles, level up your character, and also find new monsters that will protect the protagonist. You have to create collections of found creatures that live on a mysterious island called New Wirral.

Users in Cassette Beast have to wander through various locations, meeting colorful secondary NPCs. You'll have to take control of a group of fighters who use a special cassette player to transform. You will be able to use transformation as your main ability, which allows you to gain advantages in battles. It is necessary to select for each situation the necessary types of creatures that can be found at the levels.

During skirmishes with opponents, you have to work out your own winning tactics, taking into account the strengths and weaknesses of your opponents. The main task for users is to find a way out of the trap in which a group of adventurers finds themselves. You have to meet the locals, make friends and create a powerful team of warriors. Users will often use the capabilities of monsters, which will help them overcome landscape obstacles, climbing mountains or flying over chasms.