My first idea is to create a generative environment that the player simultaneously explores and creates. Depending on how the player moves through the environment, the environment might spawn in a different way. For example, if the player was casually strolling at a slow pace, the environment that is created might be something like a peaceful forest. If the player started running the peaceful environment would deteriorate and be replaced with something else (i.e. the forest would die and be replaced by rocks or something.)
My second idea is to also explore the idea of player actions affecting environment but with already existing environments rather than generative environments. This would probably be easier and less intensive to create since we wouldn’t have to generate a ton of objects dynamically. There would be several different environments and depending on how the player moves through the space they would see a different environment around them. Perhaps there could be things that the player could do in the space off one environment which would affeet things in the second environment but in a different way. (For example, suppose the player saw a forest environment when they were walking and a rocky wasteland when they were running. Suppose the player knocked down a tree in the first environment. In the second environment, perhaps a ridge of rocks would appear in the same place as the knocked down tree was in the first environment.
