Game Assets - Data which makes up the game (used by the Game Engine to make the game operate).
Game Assets are data objects that represent (and define) things in the game. These can be as complicated as behavioral scripting for 'intelligent' objects or even definitions of game mechanics (the way game interactions are handled.
An important aspect of this MMORPG idea is to allow Player to have a VERY LARGE role in creating additional assets and having them integrated into the game.
Sounds, Textures, Human Figures(3D Mesh), Objects in the Terrain, Scripts(program code to direct interactions of objects), Text, Level Maps - all are made up of data of one type or another (or set of several together) used to define parts of the game.
Various Tools are used to create and modify this data .