Cartoon Network Universe: FusionFall

A strange substance called Fusion Matter has begun to infect the world, causing chaos and spawning dangerous creatures. Planet Fusion, led by the evil Lord Fuse, is attempting to conquer Earth by merging its alien world with ours. As the planet descends into crisis, characters from across Cartoon Network's universe unite to fight back. Heroes like Ben Tennyson, Dexter, and the Powerpuff Girls call on new recruits to help stop the invasion. One of those recruits is you.

FusionFall is a third-person, online action-adventure MMORPG that blends exploration, combat, and platforming. Players create a custom avatar and travel through a reimagined Cartoon Network world filled with stylized versions of familiar locations and characters. The game features real-time combat using melee and ranged weapons, with missions that involve defeating enemies, rescuing allies, and completing objectives across various zones.

Throughout the game, players collect "Nanos," miniature sidekick versions of Cartoon Network characters. Each Nano grants a unique ability, such as stunning enemies, healing the player, or boosting speed. These abilities can be swapped and upgraded as the player progresses.

Experience points are earned by completing missions and defeating enemies, allowing the player to level up and unlock new equipment and areas. The game world is semi-open, with fast travel and public zones connecting story-driven regions. PvE is the primary focus, though social elements like teaming up and chatting are also included.

Originally launched in 2009, FusionFall was notable for its hybrid art style and cross-franchise integration. The official servers were shut down in 2013, but it remains a standout entry in the history of licensed online games.