The eagerly anticipated League of Legends: Dominion mode is almost upon summoners, with Riot Games flipping the switch on the game's "limited beta" today.

"Over the coming days, we'll be opening testing windows on our platforms during off-peak hours, each of which will be prefaced by a forum announcement to let you know you can and participate," the developer announced a short time ago. "And if you miss one of the testing windows, remember that there will be plenty more opportunities to help test Dominion as we speed toward launch!"

The first test window is right now. There's no word yet on when Dominion will launch officially.