Exist Archive: The Other Side of the Sky is a role-playing game for PlayStation 4 that immerses players in a unique narrative set in modern-day Tokyo and the fantastical world of Protolexa. Players control a diverse cast of protagonists who are malevolent, soul-collecting deities entangled in divine conflicts. The game emphasizes dungeon crawling, allowing players to delve into intricately designed environments filled with challenges and puzzles.

The gameplay features a side-view perspective that enhances the exploration of dungeons while showcasing chibi-style 3D character designs. Players can utilize a variety of skills such as jumping and dashing to navigate obstacles and solve puzzles within the dungeons. Enemies are displayed on screen prior to engaging in combat, providing strategic insights into battles and enhancing the overall gameplay experience.