You're more than welcome to make one yourself.
It could even just be a github repository.
Edit: I don't mean to sound accusatory, but it is much more likely to actually happen if someone takes the first step.
It could even just be a github repository.
Edit: I don't mean to sound accusatory, but it is much more likely to actually happen if someone takes the first step.
I specified game design because I think it would benefit the most from such an "ideawiki"; there's still lots of untapped genres or cool things from 20+ year old games that haven't been reintroduced in a modern way, but really there must be all sorts of apps that people have ideas for but are unable to make themselves,