Global Agenda mixes a science-fiction setting with a secret agent backdrop, leading the developers to refer to the game genre as spy-fi.[4]
The game is set on 22nd-century Earth in the wake of severe global disaster.[5] An Orwellian government called the Commonwealth tyrannically rules Earth with an army of artificially intelligent drones. Earth's population is under one billion people and suffers from a shortage of habitable land. Advanced technology allows limited regions of Earth to be environmentally cleansed and habitable. As land becomes available there is intense competition to colonize the area and control that region's technology. This competition sets the stage for much of the game's campaign action.[6]
The developer has released several pieces of fiction to establish the back-story as well as a timeline for what occurred in the Global Agenda universe before the game begins: Pre-Commonwealth[7] and Post-Commonwealth.[8]
The game features a third-person camera view, although some weapons allow scoping in a first-person view using a mouse action. Characters have jetpacks, as well as various weapon types, including melee.[9]
The game features four classes: Assault,[10] Recon,[11] Medic,[12] and Robotics.[13] All have customizable skill trees and their own weapons.
In the Summer of 2010, Hi-Rez released a Global Agenda expansion entitled Sandstorm[17] to add new content to Global Agenda.[18] Sandstorm was released in two major phases: Phase One (1.3) included changes to weapons and armor, loot drops and an HA overhauled crafting system.[19] and Phase Two (1.35) included the introduction of a new "Sonoran Desert" Open Zone, additional mission styles, including 10-person defense raids and Special Ops missions, Consumables and Salvage and an overhaul to the in-game credit and token system.[20]