Residuum Farming & Optimization

Residuum is the lifeblood of your arsenal in Deathloop, allowing you to permanently infuse weapons, trinkets, and slabs between loops. Mastering Residuum farming is crucial for building a powerful loadout and tackling the Visionaries with confidence. This section will guide you through efficient strategies to maximize your Residuum gains.

Understanding Residuum Sources

Residuum is primarily acquired by absorbing glowing objects and defeated Visionaries. However, not all sources are created equal. Prioritizing high-value targets and understanding the mechanics of Residuum absorption will significantly boost your farming efficiency.

Glowing Objects: These environmental elements appear in various forms (e.g., glowing rocks, broken machinery) and offer a small but consistent amount of Residuum. Always absorb them when you see them.
Infused Items: Any weapon, trinket, or slab you find that is already infused (indicated by a glowing aura) will yield a substantial amount of Residuum when absorbed. This is a primary source for mid-to-late game farming.
Visionaries: Defeating a Visionary provides a massive Residuum payout. This is the single most lucrative source and should be a core part of any farming strategy.
Julianna: Successfully eliminating Julianna (either as an invader or when you invade) grants a significant Residuum bonus, often enough to infuse multiple items.

Strategic Farming Routes

Efficient Residuum farming involves planning your loop to hit multiple high-value targets. Here are some optimized routes:

Morning: Karl's Bay - Harriet Morse

Harriet Morse is an excellent early-loop target for Residuum. Her area in Karl's Bay is relatively contained, and she drops a good amount of Residuum upon defeat.

Infiltrate Karl's Bay: Head directly to Harriet's Hangar.
Stealth or Assault: Decide your approach. Stealthily taking out her Eternalists and then Harriet herself can be quicker, but a direct assault is also viable if you have strong weapons.
Absorb Harriet: Collect her Residuum immediately.
Scavenge the Hangar: Look for any infused weapons or trinkets dropped by Eternalists or found in the hangar itself.
Optional: Explore Karl's Bay: If time permits, quickly sweep through the rest of Karl's Bay for glowing objects and potential infused items.

Noon: The Complex - Egor Serling (If not already eliminated)

Egor, if present at The Complex during Noon, is another prime target. His research facility often contains high-value infused items.

Head to The Complex: Make your way to Egor's lab.
Clear the Area: Egor's Eternalists can be tough. Prioritize stealth takedowns or use powerful area-of-effect abilities.
Defeat Egor: Absorb his Residuum.
Loot Egor's Lab: This area is often rich with infused items and glowing Residuum sources. Pay close attention to desks, shelves, and experimental equipment.

Afternoon/Evening: Updaam - Aleksis Dorsey / Charlie Montague

Updaam in the afternoon or evening is a goldmine, especially with Aleksis's party or Charlie's game. These areas are dense with Eternalists and often yield multiple infused items.

Choose Your Target:
- Aleksis Dorsey (Evening): Infiltrate Dorsey Manor. The party is packed with Eternalists, increasing your chances of finding infused weapons. Focus on eliminating Aleksis for his large Residuum drop.
- Charlie Montague (Afternoon): Head to Condition Detachment. Charlie's game involves numerous enemies and interactive elements that can lead to infused gear.
Prioritize Infused Items: As you clear the area, actively seek out and absorb any glowing weapons or trinkets dropped by enemies or found in the environment.
Absorb the Visionary: collect the substantial Residuum from Aleksis or Charlie.

Maximizing Residuum with Trinkets

Certain character trinkets can directly enhance your Residuum gains. Incorporating these into your loadout, especially during dedicated farming runs, is highly recommended.

Deep Pockets: While not directly increasing Residuum, this trinket allows you to carry more weapons, meaning you can pick up more infused items to absorb later.
Golden Harvest: (If such a trinket exists in the game, it would be ideal here. As per the reference, specific trinket effects are not detailed, so this is a placeholder for a hypothetical trinket that boosts Residuum gain.) If you find a trinket that increases Residuum gained from sources, equip it immediately for farming runs.

End-of-Loop Strategy: The Residuum Dump

The most critical step in Residuum farming happens at the end of each loop. Before the loop resets, you must infuse any items you wish to keep. Any Residuum you haven't spent will be lost.

Access the Loadout Screen: Before the final loop reset (e.g., after killing all Visionaries or letting time run out), open your loadout.
Infuse Key Items: Prioritize infusing your most valuable weapons, slabs, and trinkets. Remember, the cost to infuse increases with rarity.
Absorb Remaining Items: Any infused items you picked up during the loop that you don't want to keep should be absorbed for their Residuum. This is crucial for converting temporary gains into permanent currency.
Don't Hoard Residuum: There is no benefit to saving Residuum across loops. Spend it all or lose it.

Advanced Tips for Residuum Optimization

Julianna Encounters: Always engage Julianna. Defeating her provides a significant Residuum boost, and she often drops high-tier infused weapons or trinkets.
Weapon Rarity: Higher rarity weapons (e.g., Legendary) yield more Residuum when absorbed. Prioritize picking these up, even if you don't plan to keep them.
Slab Upgrades: Once you have a slab, subsequent Visionary kills of the same type will drop a slab upgrade. These upgrades also provide Residuum when absorbed if you already have the max level for that slab.
Prioritize Infused Drops: When clearing areas, always scan for the glowing aura of infused items. These are your primary source of raw Residuum for infusing other gear.

Residuum Farming & Optimization — Deathloop Guide