Excellent Game Idea need Developers

Copyright laws are different depending on the country. In Australia, copyright is free and automatic upon creation of the work. Trademark is something different, like if you thought of a name for your game or characters that you wanted to protect. The game and concept itself would be protected by copyright. To protect yourself from others stealing your ideas during the creation of the work, you could have a legal document created for them to sign, but I think that if you already had evidence that the game is your idea, then this would just be additional protection.

you cannot copyright an "IDEA"
idea is something a bit general and cannot be copyrighted, coz someone can think of the same stuff like an idea to cure cancer with X, a jumping game with platforms while saving a princess,
a space battle with aliens,... or an fps game with soldiers to battle terrorist in a multiplayer battle that have online and offline modes that players can equip many cool guns and have some customization with everything and have cool maps in the desert or river or have ship and air battles --- those sample ideas cannot have copyright there just common ideas that many people in the world already thought of, and others will have those ideas too... even mashing up genre like multiplayer fps rpg survival horror in voxel style with crafting (minecraft - microsoft bought the name and the rights/company, they cannot sue others who'll make the same gameplay, unless others use duplication).... or even creating rock music with pop music, pop rock... you get the point.

but you can copyright a story, article, methods and procedure (better patent it), video, art/music compositions and the likes. The one you use your derivative talent can receive copyright claims.
Trademark would be the way to go if you are serious with the business.

You can have some intellectual property rights for those ideas nontheless, but don't expect much, and yes IPR depends on the country but we have international protective laws as well.

Sounds to me like you're putting the cart before the horse. You're already worrying about protecting the fortune your amazeballs game will make you, yet you don't even have a started game yet, or the skills to make it, or even know someone who has the skills to make it.

It's good that you're dreaming big. But unless you want that dream to remain a dream forever, you'll need to put in a lot of hard work. I'd suggest starting on the game yourself - that's what Fusion's for - it's easy enough for anyone to use.

Having said that, what you're really asking for is an NDA - a Non-Disclosure Agreement. If you find a developer who's willing to give you a shot, just get them to sign an NDA before you tell them your idea - that means that any information you discuss must be kept confidential (ie. they aren't allowed to blab about your idea to anyone). You can get a free and legally binding NDA here: Please login to see this link.