FusionFall

Cartoon Network Universe: FusionFall was a massively multiplayer online game developed by Cartoon Network and South Korean studio Grigon Entertainment, released on January 13, 2009. The game took place within an amalgamation of Cartoon Network settings that included characters and locations from established shows as well as some unique additions, following a science fiction genre. FusionFall used the Unity engine as its client technology basis.

For the first year, the full game required a subscription; free accounts could only access a portion of the content. On August 29, 2013, the game's servers were shut down. It was unofficially revived by fans as two different games in 2017, the first being FusionFall: Retro (a revival of the original game) and the second being the unreleased FusionFall: Legacy (the original game plus additional content). On April 16, 2020, Cartoon Network issued a DMCA takedown notice to the developers of the games, resulting in Retro being removed entirely and Legacy's cancellation.

Under the control of Lord Fuse, Planet Fusion travels through the universe devouring other planets, and Earth becomes its next target. Fusion Matter is dropped upon Earth, taking on a corrupted form of objects in the environment and becoming monsters. The player is enlisted into a force to thwart the enemies' plan and defeat them.

In FusionFall, the player takes control of a customized human avatar. The game world features over 50 characters and several areas based on then-current and past shows on Cartoon Network. Some of these characters assist the player during their adventure. Uncommon in MMORPG's of its time was the platforming gameplay significantly present in FusionFall, with Community Director Rich Weil emphasizing the developers' intent to make the game "as three-dimensional as possible".

The player character is viewed from a third-person perspective with an overlaid HUD. By defeating enemies, players progress towards leveling up and receive currency, called taros, to buy clothing and weapon upgrades. There are two types of combat styles, ranged and melee, and the player can equip weapons for both and switch between them with a button press. A special feature present in FusionFall is the use of nanos, small versions of Cartoon Network characters, obtained by defeating an evil doppelgänger of the respective character. The mission to defeat the doppelgänger becomes available once the player obtains enough Fusion Matter, the game's experience point, and the player's level is dependent on how many nanos they've collected. Having the nano and assigning them as active grants a special ability of the player, chosen among three.

Four characters were available as a guide: Ben Tennyson (Ben 10), Dexter (Dexter's Laboratory), Edd (Ed Edd n Eddy), and Mojo Jojo (The Powerpuff Girls). They gave rewards like equipment and items for completing certain missions.

Playing past level 5 originally required a monthly paid subscription in the form of redeemable cards that could be purchased at participating retailers. The cards were rendered obsolete after April 16, 2010, when the entirety of the game became free to play; players with unredeemed time cards were offered a refund for their unused cards. Since the game was designed for kids primarily, there were parental control options, giving parents the ability to monitor what their children were doing and restrict how much they could chat with other users.

New missions, NPCs, areas, and elements were periodically added to FusionFall from more recent shows. An area called the Academy was also put into the game, where players made their characters and started playing. FusionFall's development, however, stopped so Cartoon Network could focus on other games such as Project Exonaut, Formula Cartoon, and FusionFall Heroes.^{[citation needed]}