The player must capture slimes, build environments in which to raise them, grow crops with which to feed them, and eventually collect and sell the valuable 'plorts' the slimes produce in order to afford still more equipment further the slime-raising endeavour. Slimes and other creatures, as well as fruits, vegetables, and other useful items, may be found by exploring the world around the ranch, and new locations become available as the player progresses through the game.