Grim Peak is a fantasy combat game set upon an arena atop a peak. Players are tasked with both surviving their time on the peak and working together to destroy a variety of enemies summoned into the arena with them, some of which, may affect other monsters in the arena, creating new, dangerous threats. The game becomes more challenging as ever more monsters are summoned into the arena with players. Players must then use their combat abilities, magical powers, or both, to not only destroy monsters, but also distract and slow their progress. Grim Peak is won if players defeat all monsters while allowing themselves to be defeated in combat only a very limited number of times.