Spear is an action-adventure platformer in which you play as Default, a background NPC who must save a corrupted digital world after the protagonist dies due to a fatal error. Armed only with a spear, you will navigate through glitched levels filled with broken quests and faulty gameplay mechanics. The spear serves as your primary tool for combat and movement, and can strike enemies, cause telekinesis, slow down time, create platforms, and cross impossible gaps.