A resilient metal that is hardened by the impurities within it.—In-game Description

Ferros is a common resource obtainable by mining red ore veins in the Plains of Eidolon. Its main use is in crafting Fersteel Alloy.



Drop Locations[]

Mission Drop Tables

Enemy Drop Tables



Enemy

Drop Table Chance[4]

Item Chance[5]

Chance[6]

Expected Kills[7]

Quantity[8]

Avg. per roll attempt[9]


Narmer Thumper
400%
4.17%
16.68%
6
1
0.1668


Narmer Thumper Bull
600%
4.17%
25.02%
4
1
0.2502


Narmer Thumper Doma
800%
4.17%
33.36%
3
1
0.3336


Tusk Thumper
400%
4.17%
16.68%
6
1
0.1668


Tusk Thumper Bull
600%
4.17%
25.02%
4
1
0.2502


Tusk Thumper Doma
800%
4.17%
33.36%
3
1
0.3336

Sourced from the official drop table repository. See Module:DropTables/data to edit on the wiki.

Blueprints Requiring Ferros[]



Blueprint

Type

Quantity


 Devolved Namalon x20
Resource
20


 Fersteel Alloy x20
Resource
20




Total

40

Last updated: Hotfix 29.5.8 (2020-12-11)

Trivia[]
Based on its appearance and description, this is almost certainly an iron ore. Its name is likely an Orokin or Ostron nomenclature based in the Latin word for iron, which is "ferrum".


↑ Chance to roll item within drop table

↑ Amount rewarded on successful roll

↑ (Quantity × Chance)

↑ Chance to roll drop table

↑ Chance to roll item within drop table

↑ (Drop Table Chance × Item Chance)

↑ (1 / Chance), see WARFRAME Wiki:Expected & Nearly Guaranteed Numbers for more details

↑ Amount rewarded on successful roll

↑ (Quantity × Chance), average item quantity on a roll attempt (successful or not)