Ok, I'm new to this industry, but if someone were to submit an idea (along with a check) to a game developer and, within a year, the game is on the market with a few variations and it could be proven the game developer had a hand in this, is there any legal recourse for the individual?
How can someone protect themselves? Would a copyright on the instructions help?
And, what of the game challenges on this site? What if the winner sees his/her idea in print within a year? Are they entitled to anything if links are proven?