Global Agenda has turned into a Free to Play (F2P) MMO. I think it was called Sandstorm but now it’s Global Agenda: Free Agent. They’ve made some big updates to the skill trees and other gameplay tweaks so you might want to give it another try if you’ve played it before or if you’re completely new to the game. This game never had a monthly fee so basically the game client which used to cost $20 is now free.
However, if you pay $20 you become an Elite Agent and I think you get to level 50% faster and some other bonuses.
You can download the game at the GA website. I’m not really sure but I think you could also download the game demo off Steam and you’d have access to everything also. I’m like 20% sure lol.
Click here to get the game off the Hi-Rez Studio website (The guys who made the game).