Legendaries in Outriders are some of the best gear players can acquire in-game.
All manner of mobs in Outriders drop loot. Square Enix specifically designed the game to function in such a way that each encounter would give the player something upon successful survival. In turn, it punishes them for failure by taking away experience and World Tier advancement.
However, like any other MMO, progression is one of the most important parts. We'll tell you how that plays into Legendaries below.
How to Get Legendaries in Outriders
Legendary items only appear during difficult battles in difficult situations, i.e. boss fights on a high World Tier.
While it is true that all mobs will drop some type of loot, the best loot only comes from high-ranked fights. The more effort required to pull off a win directly correlates to the quality of the reward afterward. This is the basic formula needed to produce a situation where legendary items can drop.
Now, that that's explained, we can move into discussing how to artificially set up as many of those encounters as physically possible. At its core, this involves repeating certain missions as many times as players can bear.
Players are welcome to run through the Terra Infirma side quest as many times as they need and take down the spawned Captain toward the end as often as they'd like for the chance to collect a legendary item. They can also re-battle story campaign bosses with the same effect.
Additionally, there is a unique point in the "Reunion" main campaign mission when the game tasks players with carving "a path to the solar tower." Between its issue and completion, there are both a checkpoint and a corresponding Captain encounter, respectively. Players can take down this Captain, loot them, and then let the rest of the enemies in the room kill them if they didn't get the drop they wanted. The game then drops them at the checkpoint just before the fight to create a brief and infinite loop.
Just be sure to run these instances at a high World Tier to ensure the best chance at legendary loot.