Well, you can sure try contacting them, but I think the general rule is, if they see it, they take it. Most sites will take it down by request (most of them will ask before putting it up, in fact! Or like one site keeps doing to me, putting it up and THEN asking if that was cool). Sitelocking would stop them for sure, but it’s too late to stop the spread now. The trick is (again, too late) that you want to make the version you have up be one that you WANT spread around. Take advantage of the expected thievery. Full of links to your site, maybe with mochi ads or whatever plugged in so you benefit from it. Their expectation that they can grab it for free is not crazy – most flash games are intended to be spread around and built to benefit from it, so they could rightly think they’re doing you a favor by posting it.

Upload a post-compo version that is site-locked and better in every way than the current one. Actually, I think you’re doing that already, so that’s not as helpful as I had hoped.

And it can’t hurt to send a polite letter to the other sites. Sometimes it’s an honest mistake.

What I can think of:

Just send them an e-mail. The sites are not as evil as you think, and will take it down upon request. A friend of mine had similar problems, and one simple nice e-mail was all it took and the sites all complied.

Thanks for all the advice! I wanted to keep my 48 hour submission pure (only what I’d done in 48 hours), and I didn’t have the time to “web-ready” it.

I would just try not to let it get to you. I had a flash game that was only available on my web site. It ended up getting top ranked for some google searches and I was making $100+.

Ironic given the title of the game. Nice game btw, I can see why they’d want to steal it.