If you’re talking about exclusive K+ beta games, those are selected by our staff team.
If you’re wanting a few of your friends to test out your game before uploading, leave it in “unpublished mode” and send us (firstname.lastname@example.org) a list of users you’d like to have access to the game.
In time we’d like to have a way for developers to do this themselves.
Hey, do you like games? So do we — that’s what makes Kongregate the best source of free games online. We have thousands upon thousands of free online games, from both one-man indies and large studios, rated and filtered so you can play the best of the best. Read more »