The event was available every weekend from Friday at 10 AM PST to the Weekly Reset on Tuesday. Participation in the Trials of Osiris playlist required the latest Destiny expansion.
The final Trials of Osiris event for Destiny took place on August 14, 2017.
Trials of Osiris used the Elimination gametype. Entrance into the Trials required a Trials Passage, which could be purchased from Brother Vance for 500 Glimmer. Once a Trials Passage accumulated three losses, the Passage would no longer grant admission to the Trials. In order to continue competing in the Trials of Osiris, a new Trials Passage would need to be purchased. If a Guardian quit or disconnected from a match before it is completed, a loss was added to the Trials Passage. In Year 1, Guardians could use Passage Coins to purchase boons from Brother Vance that would aid in obtaining the most wins possible. However, in Year 3, boons were made obsolete as Guardians were able to inspect their Trials Passage to purchase modifications that would grant the same effects that boons did.
Level advantages were enabled, and teammate matchmaking was disabled, so Guardians would need to form their own fireteams. Teams were matched against each other depending on connection and the number of wins on their Trials Passage.
Each match would take place on the same map in a given week. The map rotated every week. However, during the last week Trials of Osiris was available, the map chosen for each match was random.
Guardians who accumulated nine wins and zero losses on a single Trials Passage would be able to travel to The Lighthouse, a location on Mercury that contains exclusive loot. Access to this area would remain open until the weekly reset and Guardians could only obtain rewards from The Lighthouse once per character per week. Opening the chest at The Lighthouse would reward the following: