Quandary is retro-adventure video game with inspiration from platform games. It is specifically designed for single-screen cooperative multiplayer, which means that it must be played with double input through either single player dual-wield or local team. The game features mechanics from door-and-lever to environmental damage. These gameplay mechanics are critical to complete each level as the player(s) need to fully master Christina Greyson, the mechanical specialist, and Syme Parcivel, the treasure hunter, to fully explore each level and unlock the secret of the decaying castle.