Rusty Rabbit is a unique role-playing game set in a post-apocalyptic ice age where evolved rabbits reclaim human technology. Players take on the role of Stamp, a middle-aged rabbit and rust digger, who explores the ruins of Smokestack Mountain to uncover treasures and secrets. The game features a variety of weapons and abilities, allowing players to navigate dungeons while battling enemies and bosses. As players progress, they can upgrade Stamp's mech with parts collected from the environment, enhancing gameplay and exploration.

The storyline unfolds as Stamp discovers information about his estranged daughter while teaming up with a rust digging group known as the BBs. The charming world is filled with friendly villagers who assist on the journey, providing an immersive experience. Overall, Rusty Rabbit combines exploration, combat, and character development in a whimsical yet challenging setting, appealing to fans of role-playing games.