A gift from the Lotus to commemorate the anniversary of the first Tenno waking from Cryo stasis.
The Dex Furis was a gift awarded to every Tenno who logged in between Update 12.6 release March 26 and April 2, 2014, in honor of the first anniversary of WARFRAME on PC. Like all special event weapons, the Dex Furis came with its own Orokin Catalyst and slot. It was released again in Update 16.1.2 between March 25 and April 1, 2015, along with the Dex Dakra. They were re-released once again between March 22 and March 29, 2016, alongside the Dex Dakra and Dex Sybaris. All three were available again from March 24, 2017 through March 27, 2017.
The Dex Furis is the first item to be given the Dex prefix.
During the Tenno Live 2015 panel at PAX East, the developers present confirmed that "Dex" denotes WARFRAME anniversary gifts from the Lotus.
Unlike Vandal and Wraith variants, the Dex Furis use a unique weapon model when compared to the regular Furis/Afuris.
The models are non-static; two hemispheres on both sides of the weapons rotates slowly. They rotate faster when the weapons are fired, and gradually slow down afterward. The magazines are also ejected during reloading.
The Dex Furis was released again for WARFRAME's Second Anniversary on March 25, 2015. Players who already had a Dex Furis from the previous year would receive a second set. Since the weapon cannot be traded or gifted, the weapon simply lingers in the inventory if the player already has a set from the first anniversary.
Players can delete their spare to make use of the free weapon slot it came in.
At the time of its release, the muzzle flash of the Dex Furis was purple and it could not be modified by any means. This was fixed in Update 14.5; the muzzle flash can now be modified via Energy color.
As of Update 18.6.2, the muzzle flash appears as the Lotus symbol.