Borderlands 4 (BL4): Moxxi's Big Encore Locations & Interactive Tracking Guide

Moxxi's Big Encore is the Boss respawn system that replaces save-quit farming in Borderlands 4 — a vending machine placed near every boss arena after the first kill, allowing infinite respawns without leaving the game.

Every machine location is marked at exact coordinates on the Borderlands 4 maps, with the boss it serves named in each entry.

How Moxxi's Big Encore Works

After defeating any boss for the first time, a Moxxi's Big Encore machine spawns near the arena entrance. Interact with it to pay the respawn fee and trigger an immediate boss rematch.

The boss drops fresh loot on every kill — every Encore run resets the drop pool. The system removes the need for save-quit farming entirely: no quitting to the menu, no reloading, no replaying full missions.

After each boss kill, a purple orb portal appears in the next room. Grapple it to jump through and return directly to the arena entrance — eliminating all travel time between runs.

The farming loop is: kill boss → loot drops → sell junk at the nearby vending machine → interact with Encore machine → repeat.

Cash Cost: Scales With Level, Self-Sustaining

The cash cost of each Encore run increases with your Vault Hunter's level — approximately 2.33% per level:

Activity bosses (story bosses, Order Bunker bosses, Ripper Drill Site bosses): caps at 30,000 cash at level 50
Main bosses (Idolator Sol, Callis, Vile Lictor, The Timekeeper, Primordial Guardians): caps at 40,000 cash at level 50

The cost is self-sustaining. Sell the boss's loot drops — mark unwanted items as junk and sell in bulk at Zed's Meds machine near the arena — to cover the respawn fee entirely.

The farming loop costs nothing net at any level when drops are consistently sold.

The Weekly Big Encore Boss

Each week, one boss is designated the Weekly Big Encore Boss, identified by a red icon on the world map.

The Weekly Boss runs from Thursday at 9:00 AM PT / 6:00 PM CET to the following Thursday. Key stats:

Cost: 100 Eridium (instead of cash — or cash + Eridium on standard weekly runs)
Health: 2× the standard version
Legendary drop rate: 30% (up from 9% on standard Encore runs)
Phosphene drop rate: 1.5% (up from 0.3%)
Does not scale with UVH difficulty level — the 30% rate is fixed

Farm Contracts Board Vile Bounties for Eridium to fund Weekly Boss runs.

The Weekly Boss only becomes accessible after completing the UVH campaign and the Ultimate Vault Hunter: Big Encore introduction mission from Moxxi.

All Moxxi's Big Encore Locations in Borderlands 4

Every machine is located immediately outside or inside its boss arena and only spawns after the first kill. The 40+ machines are distributed across:

Coastal Bonescape — Splashzone, Voraxis
Hungering Plain — Sidney Pointylegs, Horace
Idolator's Noose — Mimicron, Sludgemaw, Foundry Freaks
The Howl — Core Observer
Dissected Plateau — The Oppressor, The Backhive, Bio-Bulkhead
Lopside — Genone, Pango Bango
Grindstone of the Worthy — Skull Orchid, Leader Willem, Fractis
Ruined Sumplands — Rocken Roller, Rippa Roadbirds
Tonnage Peel — Driller Hole
Stoneblood Forest — Bramblesong, The Battle Wagon
The Low Leys — The Divisioner
Cuspid Climb — Shadowpelt, Meathead Riders
Heart of the Mountain — Callous Harbinger of Annihilating Death
Windspear — Vile Prototype
Umbral Foundry — Vile Lictor
Vault of Inceptus — Primordial Guardian Inceptus
Vault of Radix — Primordial Guardian Radix (Moxxi's Bottoms Up!)
Vault of Origo — Primordial Guardian Origo
Moon-Called Throne — Callis the Ripper Queen (Moxxi's Bottoms Up!)
Carcadia District — Axemaul
Terminus District — Vile Ted & Experiments, Directive-0
Fades District — Bio-Thresher Omega
Upper Dominion — Arjay, The Timekeeper

Name	Map Location	Details
AxemaulCarcadia DistrictAxemaul	Carcadia District	Found next to the slide leading to the boss. Must defeat Axemaul once to make the vending machine spawn.
Vile Ted & ExperimentsTerminus DistrictVile Ted & Experiments	Terminus District	Found next to a closed door, under a grappling point. It spawns after defeating Vile Ted & Experiments for the first time.
Bio-Thresher OmegaFades DistrictBio-Thresher Omega	Fades District	Found by the closed gate. It spawns after defeating Bio-Thresher Omega for the first time.
Directive-0Terminus DistrictDirective-0	Terminus District	Found by the slide leading to the area where you fight the bunker's boss. It spawns after you defeat the Directive-0 boss for the first time.
ArjayUpper DominionArjay	Upper Dominion	Found next to the vent. It spawns after defeating Arjay for the first time.
The TimekeeperUpper DominionThe Timekeeper	Upper Dominion	Found next to the ascension pad. It spawns after defeating The Timekeeper for the first time.
Rocken RollerRuined SumplandsRocken Roller	Ruined Sumplands	Found next to the slide leading to the boss. Must defeat Rocken Roller once to make the vending machine spawn.
Skull OrchidGrindstone of the WorthySkull Orchid	Grindstone of the Worthy	Found next to the slide leading to the boss. Must defeat Skull Orchid once to make the vending machine spawn.
BramblesongStoneblood ForestBramblesong	Stoneblood Forest	Found next to the slide leading to the boss. Must defeat Bramblesong once to make the vending machine spawn.
ShadowpeltCuspid ClimbShadowpelt	Cuspid Climb	Found next to the slide leading to the boss. Must defeat Shadowpelt once to make the vending machine spawn.
SplashzoneCoastal BonescapeSplashzone	Coastal Bonescape	Found next to a pipe after defeating Splashzone for the first time.
Sidney PointylegsHungering PlainSidney Pointylegs	Hungering Plain	Found at the entrance to The Prospects Ripper Drill Site after defeating Sidney Pointylegs for the first time.
HoraceHungering PlainHorace	Hungering Plain	Found by some stairs on the top level after defeating Horace for the first time.
MimicronIdolator's NooseMimicron	Idolator's Noose	Found inside the Tipping Point Order Bunker after defeating Mimicron for the first time.
SludgemawIdolator's NooseSludgemaw	Idolator's Noose	Found in the middle of the room, spawns only after defeating Sludgemaw for the first time.
Foundry FreaksIdolator's NooseFoundry Freaks	Idolator's Noose	Found at the entrance in The Pitted Stain after defeating the 3 bosses inside for the first time.
Core ObserverThe HowlCore Observer	The Howl	Found inside the Blacklime Bunker. It spawns after defeating Core Observer for the first time.
VoraxisCoastal BonescapeVoraxis	Coastal Bonescape	Found next to the slide leading to the boss. It spawns after defeating Voraxis for the first time.
The OppressorDissected PlateauThe Oppressor	Dissected Plateau	Found after taking the elevator up, in the Order base. It spawns only after defeating The Oppressor for the first time.
The BackhiveDissected PlateauThe Backhive	Dissected Plateau	Found next to the slide leading to the boss. Must defeat The Backhive once to make the vending machine spawn.
Bio-BulkheadDissected PlateauBio-Bulkhead	Dissected Plateau	Found on top of some stairs, spawns only after defeating Bio-Bulkhead for the first time.
GenoneLopsideGenone	Lopside	Found next to the dropping point into the boss area. Spawns after defeating Genone for the first time during Fault Hunting.
Pango BangoLopsidePango Bango	Lopside	Found next to some stairs after defeating Pango and Bango for the first time.
Primordial Guardian InceptusVault of InceptusPrimordial Guardian Inceptus	Vault of Inceptus	Found next to a jump pad in the Vault of Inceptus, after defeating Primordial Guardian Inceptus for the first time.
Leader WillemGrindstone of the WorthyLeader Willem	Grindstone of the Worthy	Found right before dropping to fight Leader Willem. Must defeat the boss once to make the vending machine spawn.
FractisGrindstone of the WorthyFractis	Grindstone of the Worthy	Found inside The Crawlcroft Order Bunker.
Rippa RoadbirdsRuined SumplandsRippa Roadbirds	Ruined Sumplands	Found next to some stairs after defeating the bosses in Saw's Clench for the first time.
Driller HoleTonnage PeelDriller Hole	Tonnage Peel	Found in the corner before dropping to fight Driller Hole. Must defeat the boss once to make the vending machine spawn.
Moxxi's Bottoms Up!Vault of RadixMoxxi's Bottoms Up!	Vault of Radix	Found next to a jump pad in the Vault of Radix, after defeating Primordial Guardian Radix for the first time.
Moxxi's Bottoms Up!Moon-Called ThroneMoxxi's Bottoms Up!	Moon-Called Throne	Found down some stairs in the room with the red-lit grinder. To spawn the vending machine, you must defeat Callis, the Ripper Queen, for the first time.
The Battle WagonStoneblood ForestThe Battle Wagon	Stoneblood Forest	Found by the entrance to The Lowering March Ripper Drill Site. It spawns after defeating The Battle Wagon for the first time.
The DivisionerThe Low LeysThe Divisioner	The Low Leys	Found inside The Wireworks Order Bunker. It spawns after you defeat The Divisioner for the first time.
Meathead RidersCuspid ClimbMeathead Riders	Cuspid Climb	Found at the entrance to The Old Scrape Ripper Drill Site after defeating the 2 bosses in the area for the first time.
Callous Harbinger of Annihilating DeathHeart of the MountainCallous Harbinger of Annihilating Death	Heart of the Mountain	Found by the slide leading to the area where you fight the bunker's boss. It spawns after you defeat the Callous Harbinger of Annihilating Death boss for the first time.
Vile PrototypeWindspearVile Prototype	Windspear	Found by the wall in the red-lit area. It spawns after you defeat Vile Prototype for the first time.
Vile LictorUmbral FoundryVile Lictor	Umbral Foundry	Found next to the jump pad leading to the boss's area. To spawn the vending machine, you must defeat Vile Lictor for the first time.
Primordial Guardian OrigoVault of OrigoPrimordial Guardian Origo	Vault of Origo	Found next to the jumping pad leading to the boss. The vending machine spawns after defeating Primordial Guardian Origo for the first time.

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