Crystal Story is a turn based rpg that uses a random dungeon generator. You control four characters and configure what skill sets they learn along the way. You can earn equipment upgrades that will help you traverse through Evil Cave by destroying monsters or playing minigames.
Mouse Navigation. Hotkeys during battle.
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.