Atlantica Online is a 3D massively multiplayer online role-playing game (MMORPG) being developed by NDOORS Corporation. The game is set in an alternate history Earth, with the game map consisting of large parts of the northern hemisphere. The setting is fantasy-themed with elements of steampunk. The game is free-to-play but generates revenue through the company's online shop.
The game features a persistent world populated by player-generated characters and NPCs. Battle in Atlantica Online is rather unusual for the genre as it is turn-based. Representations of hostile parties wander around the landscape; if a player touches such a representation, his/her party and the enemy party are transferred to a separate battlefield similar in fashion to battles in the Final Fantasy series and remain there until the battle is resolved.
The world of Atlantica Online features real world locations mixed with mythological and fantasy elements. Countries like Germany and China are represented, with cities like Munich, Moscow, and Sapporo being featured as cities where one can visit.