The image is only used as an inspiration. Optical Jam's images typically don't make sense by themselves. It is up to you to come up with a game based off the image. You can use the actual image or you can gather different ideas from it. This is a good creative exercise for developers to help them think outside the box. But if you cannot come up with anything, maybe check out the Discord and see what other people may be doing. https://discord.gg/DqavvnR Good Luck!
