Yes! Add games you never even played before, then right after unlock the achievements and avatar awards directly in Horizon! This allows you to unlock your avatar's awards, and yes, you can add games with the game adder and unlock the awards straight after!
The program is updated frequently with the latest and greatest tools, making the possibilities endless, and modding for you, a cinch. With a few clicks you can unlock those achievements and avatar awards for games you just can't beat while using Horizon’s incredible user interface, built with the casual gamer in mind. In seconds you can achieve 100% completion along with unlimited health, endless ammunition, bank loads of cash, and so much more for your favorite games. Horizon is the most up-to-date and innovative Xbox 360 modding tool on the market.