The Flow Graph is a visual scripting system embedded in the CryENGINE Sandbox editor. Visual scripting is a hugely powerful tool as it visually represents basic functions and their connections in a far more accessible way than a scripter would be able to represent in code. This means that developers really don't need to have any scripting or programming knowledge to use it! A huge library of node provides the user with everything needed to fully control the entities and AI in a level.

In addition to being the main tool used for creating mission logic in single player and, even recently, multiplayer levels, the Flow Graph can also be used to prototype gameplay, effects, and sound design. Levels can have multiple graphs performing different tasks at the same time, and we can even extend these Flow Graphs to change level or global variables called game tokens, making them consistent and useable over the entire game. In the following screenshot, you see an example of how a typical Flow Graph looks: