The images included within the folder sprites/oryx of the GVGAI 
framework are the property of Oryx Design Lab, and are licensed 
for use in the GVGAI competition only. Anyone who wants to use 
these images for any other purpose than development of AI agents, 
participating in the competition or writing academic papers about 
their AI agents will need to obtain a separate license for these 
images at oryxdesignlab.com. Purposes which require
obtaining a separate license include in particular designing and 
distributing games that make use of these images.