These are the downloadable add-on campaigns for the original Borderlands, Gearbox's loot-driven shooter set on the lawless desert planet of Pandora. Where the main game sent players hunting for the Vault, these expansions spin off into self-contained episodes: a zombie-infested island, the military escalation of General Knoxx's secret armory, the wave-based arenas of Mad Moxxi's Underdome, and a robot uprising led by Claptrap.
They are games-only content, ranging from straight combat challenges to the well-regarded Secret Armory of General Knoxx, which expanded the world and loot meaningfully. Taken together they show Borderlands' irreverent, gun-obsessed tone stretched across smaller, sharper stories.
The Borderlands DLC campaigns franchise spans 4 games in the CrossBinge catalog.
Part of Borderlands.