Where to farm Endo: Rathuum, Arbitrations and Ayatan sculptures
Endo runs out exactly when a mod is a couple of thousand short of maxed. There are plenty of places that hand it out, but they differ by a factor of seven, and half the playerbase runs a booster that does nothing for it.
What Endo is spent on
Endo pays for Fusion, raising a mod's rank. The rarer the mod the more each rank costs, and the cost doubles every rank.
| Mod rarity | Full rank from zero |
|---|---|
| Common | 10,230 |
| Uncommon | 20,460 |
| Rare, plus Rivens and Galvanized | 30,690 |
| Legendary: Primed, Umbra, Archon | 40,920 |
The formula is 10 × rarity × (2 to the rank − 1), where common is 1, uncommon 2, rare 3 and legendary 4. Which is why the last rank costs as much as every rank before it put together.
The mistake everyone makes: boosters
The game files Endo as a mod drop, not a resource. So a Resource Booster, a Resource Drop Chance Booster and relay blessings do nothing at all for it. Exactly one works: the Mod Drop Chance Booster, for double the rate.
And even that only applies to what you pick up off the floor in-mission. Bounty and end-of-mission rewards are untouched.
Where to farm, with numbers
| Where | What it pays |
|---|---|
| Rathuum on Sedna, Steel Path (Yam or Vodyanoi) | up to 75,000 an hour in a squad with the right frames |
| Arbitrations | around 11,800 an hour, sculptures included |
| The daily Sortie | 4,000, or a sculpture, or a Legendary Core |
| Cambion Drift bounty, level 40-60 | 1,000 at 45% on the first stage |
| Teshin, Steel Path Honors | 30,000 for 150 Steel Essence, every 8 weeks |
| Maroo's weekly mission | a sculpture worth 1,425 to 2,700 |
| The daily Synthesis task | 250 to 800 |
| Scrapping Railjack components | 75, 150, 225 and 300 for MK I to IV |
Why Rathuum is several times everything else
The Rathuum arena on Sedna in Steel Path gives double mod and Endo drop chance simply for being Steel Path. A Mod Drop Chance Booster on anyone in the squad doubles it again.
The rest is frames that make enemies drop more: Nekros with Desecrate through Despoil, Nidus with Larva, Khora with Strangledome and its pilfering augment. A full squad running that reaches 75,000 an hour; solo is considerably slower.
Arbitrations: less, but calmer
An hour of Arbitration with a reward every five minutes averages about 11,800 Endo, counting the Ayatan sculptures that drop there. Staying longer, or picking a mission with a faster reward cycle, pays more.
Ayatan sculptures: how they actually work
A sculpture on its own is worth no Endo. You have to slot Ayatan Stars into it, the ones scattered around missions, and then take it to Maroo on Mars, who extracts the Endo from a filled one.
- A filled Anasa from a Sortie is worth 3,450 Endo.
- Sculptures from Maroo's weekly run 1,425 to 2,700.
- Sculptures trade between players, so selling one sometimes beats dissolving it.
Maroo's weekly mission resets every Monday and appears in the alert list. It is not much, but it is guaranteed and it is every week.
Dissolving mods: Endo out of what you already own
Duplicate mods dissolve in the Mods segment on your Orbiter and turn into Endo. For most players this is the most overlooked source: the inventory is already full of dozens of copies of common mods that will never be used.
Rivens deserve their own note. Dissolving one gives (100 × (mod's mastery requirement − 8) + 22.5 × 2 to the mod rank + 200 × rerolls) − 7. A max-rank riven at MR 13 rerolled five times comes to 7,253 Endo. Check the price first though: rivens trade, and often for more than their Endo is worth.
The Legendary Core
It drops from Sorties and adds no Endo, but it instantly maxes any mod at no Endo or credit cost. On a Primed or Umbra mod that saves up to 40,920 Endo, which makes one core worth more than an hour of Rathuum.
Never spend a core on a common mod. Save it for a legendary, where the saving is four times larger.
Where Orikon helps
Endo does not trade, but Ayatan sculptures and rivens do, and dissolve-or-sell is a decision best made with the price in front of you. The app shows what your loot is worth without leaving the game.
Common questions
How much Endo does maxing a mod take?
10,230 for a common, 20,460 uncommon, 30,690 for a rare or a riven, and 40,920 for a legendary such as a Primed, Umbra or Archon mod.
Does a Resource Booster work on Endo?
No. The game treats Endo as a mod drop rather than a resource, so only the Mod Drop Chance Booster affects it. Relay blessings do nothing.
Where is the fastest Endo farm?
The Rathuum arena on Sedna in Steel Path, at Yam or Vodyanoi. Endo drop chance is doubled there, and a squad with loot frames reaches 75,000 an hour.
How much Endo do Arbitrations give?
About 11,800 an hour with a reward every five minutes, counting the Ayatan sculptures that drop.
How do I get Endo out of an Ayatan sculpture?
Fill it with Ayatan Stars, then take it to Maroo in her Bazaar on Mars. A filled Anasa is worth 3,450 Endo.
What does a Legendary Core do?
It maxes any mod instantly at no Endo or credit cost. On a legendary mod that is up to 40,920 Endo saved.
Should I dissolve rivens for Endo?
Check the price first. Rivens trade between players and are often worth more than the Endo inside them.
