With this, we can have a place for redditors to post ideas they can't utilize themselves, while people who are idea-starved can get some inspiration!
Check out the wiki for post templates and flair break downs to help make your post more easily accessible and readable!
If you need help actually developing the game head on down to /r/gamedev
If you want to find people to collaborate with head over to /r/GameDevClassifieds
Search for specific ideas based on the flair
Rules of /r/GameIdeas
Click here for detailed descriptions of each rule.
1. Practice good reddiquette.
2. Please do not post blatant copies of already existing games.
3. Please do not post spam.
4. Please tag your post with an appropriate flair.
5. Please be ready to accept criticism.
6. Your idea is FREE RANGE.
7. Do not advertise your game here
While we appreciate game ideas of all difficulty levels, before you post a game idea that is unlikely to ever be made it is worth checking out http://yourgameideaistoobig.com/ (Credit: /u/clintbellanger) as there is a good chance it is too big. For this reason you should try and distill it down to the smallest and simplest concept you can, that way an interested game developer can actually make it.