Fass Residue

For Fass (Requiem Mod), see Requiem Mods.

For Deimos creature, see Fass (Deimos).

A chunk of the wyrm Fass, collected after his explosive death. Used to attract Glutinox, Ostimyr, and Vitreospina.

—In-game description

Fass Residue{"Image":"FassResidue.png","Description":"A chunk of the wyrm Fass, collected after his explosive death. Used to attract Glutinox, Ostimyr, and Vitreospina.","Introduced":"29","Link":"Fass Residue","Name":"Fass Residue","InternalName":"/Lotus/Types/Game/FishBait/Infested/InfestedFishBaitA","Type":"Resource"} is a fishing bait for fish of the Cambion Drift, used to attract Glutinox{"Type":"Fish","Description":"These hefty fish are cannibalistic. They rise by Vome's light to absorb rare gases, retreating when Fass ascends to devour their smaller kin in their lairs.","Tradable":true,"Image":"Glutinox.png","Name":"Glutinox","Introduced":"29","Rarity":"Uncommon","InternalName":"/Lotus/Types/Items/Fish/Deimos/InfestedUncommonAFishItem","Link":"Glutinox"}, Ostimyr{"Type":"Fish","Description":"Crammed with redundant, mutated internal organs, this pungent fish mingles Orokin and Infested ancestry. It is confined to the Exocrine and is only active by the light of the Wyrm Fass.","Tradable":true,"Image":"Ostimyr.png","Name":"Ostimyr","Introduced":"29","Rarity":"Uncommon","InternalName":"/Lotus/Types/Items/Fish/Deimos/HybridUncommonAFishItem","Link":"Ostimyr"}, and Vitreospina{"Type":"Fish","Description":"Whatever higher functions this fish once had have been consumed, leaving it a mere automaton of metal and flesh. It ekes out a primitive existence in cave systems.","Tradable":true,"Image":"Vitreospina.png","Name":"Vitreospina","Introduced":"29","Rarity":"Uncommon","InternalName":"/Lotus/Types/Items/Fish/Deimos/HybridUncommonBFishItem","Link":"Vitreospina"}.

Acquisition[edit | edit source]

After Vome kills Fass to begin the Vome cycle on the Cambion Drift, small zones of orange energy will appear in various locations. Entering a zone will cover the edges of the screen in orange sludge. Multiple deposits of Fass Residue will spawn inside each zone and can be destroyed to acquire 1 Fass Residue each.

Note that if one stays in the Cambion Drift for long enough, there may be Fass Residue on the map even though Fass is active.

Blueprint Checklist for Fass Residue[edit | edit source]

Blueprint	Type	Quantity
Adra Mutagen	Component	6
Arioli Mutagen	Component	6
Chiten Mutagen	Component	6
Elsa Mutagen	Component	6
Leptosam Mutagen	Component	6
Monachod Mutagen	Component	6
Phijar Mutagen	Component	6
Zarim Mutagen	Component	6
0/48 Fass Residue Clear selection (0/8)

Last updated: Hotfix 38.0.12 (2025-02-20)

Drop Locations[edit | edit source]

Mission Drop Tables

Mission Type	Source	Rotations or Drop Table	Chance^[1]	Quantity^[2]	Avg. per roll^[3]	Star Chart Nodes
Necralisk Bounty	Necralisk Bounty Lvl 30-40 Stage 2 & 3	A	4.11%	5	0.2055	Cambion Drift/Necralisk, Deimos; talk to Mother
Necralisk Bounty	Necralisk Bounty Lvl 30-40 Stage 1	C	7.5%	5	0.375	Cambion Drift/Necralisk, Deimos; talk to Mother
Necralisk Bounty	Necralisk Bounty Lvl 30-40 Stage 4	A	3.23%	5	0.1615	Cambion Drift/Necralisk, Deimos; talk to Mother
Necralisk Bounty	Necralisk Bounty Lvl 30-40 Stage 1	A	7.5%	5	0.375	Cambion Drift/Necralisk, Deimos; talk to Mother
Necralisk Bounty	Necralisk Bounty Lvl 30-40 Stage 2 & 3	C	4.11%	5	0.2055	Cambion Drift/Necralisk, Deimos; talk to Mother
Necralisk Bounty	Necralisk Bounty Lvl 30-40 Stage 4	C	3.23%	5	0.1615	Cambion Drift/Necralisk, Deimos; talk to Mother

Enemy Drop Tables

Enemy	Drop Table Chance^[4]	Item Chance^[5]	Chance^[6]	Expected Kills^[7]	Quantity^[8]	Avg. per roll attempt^[9]
No enemy drop tables with this item

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

Notes[edit | edit source]

Amount yielded is not affected by Resource Booster{"Link":"Resource Booster","Type":"Booster","Description":"Doubles the amount of resources you get from pickups.","Introduced":"Vanilla","Tradable":false,"Name":"Resource Booster","InternalName":"/Lotus/Types/StoreItems/Boosters/ResourceAmountStoreItem","Image":"3DayResourceBooster.png"}s, Loyal Retriever{"Description":"13% chance to double Credit and Resource pickups","Conclave":false,"MaxRank":"5","Image":"LoyalRetrieverMod.png","Introduced":"37","Icon":"LoyalRetriever.jpg","Transmutable":false,"Type":"Beast","Rarity":"Uncommon","Link":"Loyal Retriever","BaseDrain":"2","Polarity":"Naramon","Name":"Loyal Retriever","Tradable":true,"Incompatible":["Prosperous Retriever","Resourceful Retriever"],"InternalName":"/Lotus/Types/Sentinels/SentinelPrecepts/BeastLoyalRetriever","CodexSecret":false}, or Prosperous Retriever{"Description":"18% chance to double Credit pickups","Conclave":false,"MaxRank":"5","Image":"ProsperousRetrieverMod.png","Introduced":"37","Icon":"ProsperousRetriever.jpg","Transmutable":false,"Type":"Beast","Rarity":"Rare","Link":"Prosperous Retriever","BaseDrain":"2","Polarity":"Naramon","Name":"Prosperous Retriever","Tradable":true,"Incompatible":["Loyal Retriever","Resourceful Retriever"],"InternalName":"/Lotus/Types/Sentinels/SentinelPrecepts/BeastCreditDoublingMod","CodexSecret":false}.
Resource deposits are not marked (e.g. Thief's Wit{"Description":"Highlights mods through the environment as well as the Minimap.\r\n+42 Loot Radar","IsExilus":true,"UpgradeTypes":["AVATAR_LOOT_RADAR"],"MaxRank":"5","Image":"Thief'sWitMod.png","Introduced":"0","Icon":"Thief'sWit.png","Transmutable":true,"Type":"Warframe","Rarity":"Common","Link":"Thief's Wit","BaseDrain":"2","Polarity":"Naramon","Name":"Thief's Wit","Tradable":true,"Incompatible":["Flawed Thief's Wit"],"InternalName":"/Lotus/Upgrades/Mods/Warframe/AvatarLootRadarMod","CodexSecret":false}).
6-12 Wyrm Residue, depending on squad size, (either Fass Residue{"Image":"FassResidue.png","Description":"A chunk of the wyrm Fass, collected after his explosive death. Used to attract Glutinox, Ostimyr, and Vitreospina.","Introduced":"29","Link":"Fass Residue","Name":"Fass Residue","InternalName":"/Lotus/Types/Game/FishBait/Infested/InfestedFishBaitA","Type":"Resource"} or Vome Residue{"Image":"VomeResidue.png","Description":"A gobbet of raw flesh, fallen from the wyrm Vome in her death spasm. Used to attract Chondricord and Duroid.","Introduced":"29","Link":"Vome Residue","Name":"Vome Residue","InternalName":"/Lotus/Types/Game/FishBait/Infested/OrokinFishBaitA","Type":"Resource"}) are needed to activate the bait machine in the first stage of the Isolation Vault bounty. Existing Residue will despawn, and new Residue will respawn for the players to collect.
They can be traded at Father in exchange for Father Token{"Image":"FatherToken.png","Description":"A symbol of Father's trust and confidence.","Introduced":"29","Link":"Father Token","Name":"Father Token","InternalName":"/Lotus/Types/Items/Deimos/EntratiFragmentUncommonA","Type":"Resource"}s in quantities of 6 to 12. Curiously, Father will never ask for Residue in Token bundles that reward two or fewer tokens.