The Infinite Forge

The Infinite Forge is an impromptu weapon foundry in the Lighthouse on Mercury, overseen by the Followers of Osiris. It specializes in co-opting Vex technology into Guardian weaponry, and is where weapons from the Lost Prophecies are crafted. It debuted in Curse of Osiris.

Unlocking

To reach the forge, a Guardian must finish the Curse of Osiris campaign, complete the three Mercury Adventures, and complete one Heroic Adventure chosen through Brother Vance, who then provides the first Lost Prophecy tablet.

Weapons

The forge makes eleven weapons: Garden Progeny 1, The Conqueror 2, Jack Queen King 3, Machina Dei 4, Traveler's Judgement 5, Sol Pariah 6, West of Sunfall 7, Infinite Paths 8, Null Calamity 9, Future Safe 10 and Perfect Paradox. Completing all of them grants Sagira's Shell, a playable version of Osiris's Ghost. See Lost Prophecies for materials and verses.

Perfect Paradox

The Perfect Paradox shotgun is forged at the Infinite Forge, a place reached through the Infinite Forest. Its lore is a bootstrap paradox: the Guardian makes it in the present, gives it to Saint-14 in the past, and later recovers it from his grave in the Simulant Future. In the Corridors of Time quest, Saint-14 draws it during the fight against the Vex.