OK so this one is super far-fetched.
But I've always been interested in where we come from etc, and research prehistoric man at times, and I have a pretty interesting app idea:
An app that stimulates our ancestors the "cave man" in all their different species.
I think this is possible (in the somewhat far future) because we have:
- complete genome mappings for most species of cave man
- knowledge / fossils of most of the plant life, atmospheric composition and environment of their time
Combine that with powerful enough computation and I think we can simulate our ancestors and watch them and learn from them and possibly even try to communicate?
I just think its fascinating where we come from and to learn more about history. Could even be made into a pretty crazy educational game. And technically it can become possible because of all the data we currently have. But we are talking about similating everything, starting with DNA and creating a simulated embryo up to a functioning sapien, so it's still far in the future.
While fantasy worlds / games will be big in the future, I think games about our own world and nature could be equally if not more interesting. Because this same idea could be applied to dinosaurs / all kinds of extinct species / historic environments.
Move over, flight simulator '95!
tl;dr: Cave man simulator / game based on cave man DNA