Gate of Abyss: GPS-Based RPG is an immersive mobile game that combines real-world exploration with role-playing elements. Players join The Alliance, a group dedicated to closing dangerous portals that unleash evil creatures. Utilizing GPS technology, the game encourages users to physically travel to different locations, where they can engage with the game world, which reflects a parallel version of Earth. The game also features a dynamic environment with day and night cycles based on the player's time zone.

In addition to exploration, players can engage in combat against various monsters, complete quests, and discover hidden treasures. The game promotes social interaction by allowing players to form parties and guilds. Players can also build structures to support their communities, set their hometowns, and participate in PvP arenas to climb the leaderboards. Gate of Abyss caters to all types of gamers, offering both casual and challenging experiences.