4:LOOP is a debut IP, classified as a co-op roguelike shooter. Players and their crew confront an alien invasion, where death is an integral part of the progression, allowing for adaptation and regrouping. Players engage in dynamic missions that present ever-changing environments, emerging objectives, and escalating threats.
The game equips players with an arsenal of mind-bending weapons and machines. A core mechanic involves the ability to "reprint" fallen teammates, integrating failures directly into the ongoing effort to destroy a moon-sized mothership. Each attempt allows players to unlock new gear and uncover secrets of the alien invasion. This is a roguelike experience centered on persistent progression through repeated attempts against overwhelming odds.