In addition to featuring several improvements from the closed beta, including a newcomer's guide and ransack function, the open beta will feature daily login bonuses. ClapAlong is also promising to roll over 150% of any in-game currency you purchase to the live edition, even if you spend the currency in the closed beta. Finally, there are prizes to be had to the first player who spots and reports a bug, and to anyone who is willing to do a little Facebook promotion for the game.
This browser-based title gives players a choice between joining the "light" side of King Arthur or the "dark" side of Lord Blackmore. There's a variety of gameplay elements at work, including both turn-based and real-time combat depending on your particular venue.
You can sign up for the open beta over on the Castlot official site.