Game threads begin in the Progressing Games section, as various rules and notices state. You can only have a thread for your game if you show some evidence that the game is actually being created (i.e. is further along than the concept stage). If you just have an idea for a game, then there's a stickied thread in Progressing Games for ideas.
As far as trying to recruit people to help you make your game, you can either do so in your own game's thread (if you have one) or in the "Team Recruitment/Volunteering" stickied thread in the main Game Development section. Note that the latter has rules about whether you can post in there - again, you need evidence that the game is actually being made, and isn't just an idea.
As far as trying to recruit people to help you make your game, you can either do so in your own game's thread (if you have one) or in the "Team Recruitment/Volunteering" stickied thread in the main Game Development section. Note that the latter has rules about whether you can post in there - again, you need evidence that the game is actually being made, and isn't just an idea.