Mercury

Mercury is the first planet of the Sol System, transformed by the Vex into a Machine World. Once a Golden Age garden world, it was "baked in the Sun's glare".

Regions

Caloris Basin holds Fields of Glass (with the Infinite Forest and the Lighthouse), Pariah's Refuge and Sundial Spire. The Languid Sea includes Icarus, a former solar farm.

Activities

The Lighthouse (for Flawless Trials of Osiris players), the Infinite Forest simulation, strikes and adventures such as "The Runner" and "Bug in the System", and Crucible maps like Altar of Flame.

NPCs

Osiris and the Cult of Osiris; his Ghost Sagira; the Sunbreakers have a Forge here; Saint-14's tomb lies in the Simulant Future.

Lore

The Infinite Forest is a Vex simulation with Past, Present and Future timestreams. Saint-14 was lost in it for centuries fighting the Vex, which preserved his body as a memorial. Osiris, exiled from the City over his obsession with the Vex, found they were simulating futures of total Vex victory, which the Guardian prevented.

History and status

Mercury launched as the setting of Destiny 2: Curse of Osiris on 5 December 2017. On 10 November 2020, with Destiny 2: Beyond Light, it was removed into the Destiny Content Vault along with Titan, Io, Mars and the Leviathan. Bungie announced on 21 September 2026 that vaulted destinations will be restored, with no date or season given. In the story, Mercury disappeared at the end of Season of Arrivals and returned to the Sol System after the Upheaval on Nessus.