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Terrifying Trove Collection Trade-Up Guide

Terrifying Trove Collection contains 21 items across 4 grades, from Mercenary to Elite. Its highest-grade item is Sear Seer. Compare the Assassin-to-Elite trade-up below, including the individual odds of reaching each Elite output.

21Items
3Routes
CheckingPrice state
Data snapshot
Terrifying Trove Case

Container information · Series #145

Terrifying Trove Case

Terrifying Trove Case contains items from the Terrifying Trove Collection. The case was introduced on 2024-10-08. Requires a Terrifying Trove Key to open.

View official Steam contents and case details ↗

All Terrifying Trove Collection Items

Base collection items, grouped by grade. Special Unusual effects and global bonus drops are separate; see the official case listing for current details.

Assumed base-drop model: 80% Mercenary, 16% Commando, 3.2% Assassin, 0.8% Elite. Each grade is split equally among its items. These user-specified assumptions exclude special drops and are separate from trade-up odds. Displayed percentages are rounded; calculations use full precision.

Grade Odds · case opening

Mercenary10 items

80.00%

Commando6 items

16.00%

Assassin4 items

3.20%

Elite1 items

0.80%

Individual Item Odds · case opening

Mercenary Grade
  • Defaced Detonator

    Mercenary · Chance: 8.00%

  • Dusk Duster

    Mercenary · Chance: 8.00%

  • Fleet Commander

    Mercenary · Chance: 8.00%

  • Mannhattan Protect

    Mercenary · Chance: 8.00%

  • Nightfall Veil

    Mercenary · Chance: 8.00%

  • School Nuisance

    Mercenary · Chance: 8.00%

  • Spider Sights

    Mercenary · Chance: 8.00%

  • The Strikeout

    Mercenary · Chance: 8.00%

  • The Witch Doctor

    Mercenary · Chance: 8.00%

  • Triboniophorus Gentlemannus

    Mercenary · Chance: 8.00%

Commando Grade
  • Delldozer

    Commando · Chance: 2.67%

  • Hellish Overlord

    Commando · Chance: 2.67%

  • Nuclear Necessity

    Commando · Chance: 2.67%

  • Shadow Shroud

    Commando · Chance: 2.67%

  • Strigoi Stare

    Commando · Chance: 2.67%

  • The Surgeon General

    Commando · Chance: 2.67%

Assassin Grade
  • Badlands Bandido

    Assassin · Chance: 0.80%

  • Chiromancer's Kit

    Assassin · Chance: 0.80%

  • Contaminated Carryall

    Assassin · Chance: 0.80%

  • Duality of Mantle

    Assassin · Chance: 0.80%

Elite Grade
  • Sear Seer

    Elite · Chance: 0.80%

Available trade-up routes

Lowest clean sell listing in; highest clean buy order out.

Terrifying Trove Collection route

Mercenary→Commando

Load non-StrangeLoad Strange

Non-Strange

unique
10× cost31.10 ref
Expected value9.18 ref
Expected P/L−21.92 ref
ROI-70.5%
Win chance0%
Cheapest quoted inputThe Witch Doctor3.11 ref each

Strange

strange
10× cost57.70 ref
Expected value25.07 ref
Expected P/L−32.63 ref
ROI-56.6%
Win chance17%
Cheapest quoted inputMannhattan Protect5.77 ref each

Eligible Mercenary inputs

ItemNon-Strange askStrange askMarkets
Defaced Detonator3.55 ref7.66 ref
Dusk Duster4.11 refNo eligible quote
Fleet Commander3.55 ref8.66 ref
Mannhattan Protect3.22 ref5.77 ref
Nightfall Veil3.22 ref6.55 ref
School Nuisance3.22 ref6.55 ref
Spider SightsNo eligible quote6.00 ref
The Strikeout3.22 refNo eligible quote
The Witch Doctor3.11 refNo eligible quote
Triboniophorus Gentlemannus3.11 ref6.00 ref

Possible Commando outputs

Trade-up odds for 10 inputs from this collection—not case-opening odds.

ItemOddsNon-Strange bidStrange bidMarkets
Delldozer16.7%30.44 ref1 key + 7.44 ref
Hellish Overlord16.7%3.44 ref13.88 ref
Nuclear Necessity16.7%4.33 ref15.66 ref
Shadow Shroud16.7%7.88 ref16.55 ref
Strigoi Stare16.7%5.66 ref19.88 ref
The Surgeon General16.7%3.33 ref12.66 ref

Terrifying Trove Collection route

Commando→Assassin

Load non-StrangeLoad Strange

Non-Strange

unique
10× cost34.40 ref
Expected value37.36 ref
Expected P/L+2.96 ref
ROI8.6%
Win chance50%
Cheapest quoted inputThe Surgeon General3.44 ref each

Strange

strange
10× cost2 keys + 30.14 ref
Expected value1 key + 50.08 ref
Expected P/L−44.39 ref
ROI-28.0%
Win chance25%
Cheapest quoted inputHellish Overlord15.88 ref each

Eligible Commando inputs

ItemNon-Strange askStrange askMarkets
Delldozer30.44 ref1 key + 12.11 ref
Hellish Overlord3.88 ref15.88 ref
Nuclear Necessity5.16 ref20.33 ref
Shadow Shroud8.11 ref17.33 ref
Strigoi Stare5.88 ref22.88 ref
The Surgeon General3.44 refNo eligible quote

Possible Assassin outputs

Trade-up odds for 10 inputs from this collection—not case-opening odds.

ItemOddsNon-Strange bidStrange bidMarkets
Badlands Bandido25.0%44.11 ref2 keys + 5.88 ref
Chiromancer's Kit25.0%14.66 ref1 key + 19.00 ref
Contaminated Carryall25.0%11.11 ref45.77 ref
Duality of Mantle25.0%1 key + 15.22 ref3 keys + 1.00 ref

Terrifying Trove Collection route

Assassin→Elite

Load non-StrangeLoad Strange

Non-Strange

unique
10× cost1 key + 45.67 ref
Expected value21.77 ref
Expected P/L−1 key − 23.90 ref
ROI-80.2%
Win chance0%
Cheapest quoted inputContaminated Carryall11.00 ref each

Strange

strange
10× cost7 keys + 20.79 ref
Expected value1 key + 9.11 ref
Expected P/L−6 keys − 11.68 ref
ROI-84.4%
Win chance0%
Cheapest quoted inputContaminated Carryall47.11 ref each

Eligible Assassin inputs

ItemNon-Strange askStrange askMarkets
Badlands Bandido45.11 ref2 keys + 6.55 ref
Chiromancer's Kit14.55 ref1 key + 25.44 ref
Contaminated Carryall11.00 ref47.11 ref
Duality of Mantle1 key + 16.00 ref3 keys + 3.55 ref

Possible Elite outputs

Trade-up odds for 10 inputs from this collection—not case-opening odds.

ItemOddsNon-Strange bidStrange bidMarkets
Sear Seer100.0%21.77 ref1 key + 9.11 ref

How to trade up to Terrifying Trove Collection items

How to trade up to Delldozer

Use ten eligible Mercenary inputs from Terrifying Trove Collection for a 16.67% chance of Delldozer, one of 6 Commando outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 8.33%. Neither recipe guarantees this item.

Calculate Delldozer trade-up odds →

How to trade up to Hellish Overlord

Use ten eligible Mercenary inputs from Terrifying Trove Collection for a 16.67% chance of Hellish Overlord, one of 6 Commando outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 8.33%. Neither recipe guarantees this item.

Calculate Hellish Overlord trade-up odds →

How to trade up to Nuclear Necessity

Use ten eligible Mercenary inputs from Terrifying Trove Collection for a 16.67% chance of Nuclear Necessity, one of 6 Commando outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 8.33%. Neither recipe guarantees this item.

Calculate Nuclear Necessity trade-up odds →

How to trade up to Shadow Shroud

Use ten eligible Mercenary inputs from Terrifying Trove Collection for a 16.67% chance of Shadow Shroud, one of 6 Commando outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 8.33%. Neither recipe guarantees this item.

Calculate Shadow Shroud trade-up odds →

How to trade up to Strigoi Stare

Use ten eligible Mercenary inputs from Terrifying Trove Collection for a 16.67% chance of Strigoi Stare, one of 6 Commando outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 8.33%. Neither recipe guarantees this item.

Calculate Strigoi Stare trade-up odds →

How to trade up to The Surgeon General

Use ten eligible Mercenary inputs from Terrifying Trove Collection for a 16.67% chance of The Surgeon General, one of 6 Commando outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 8.33%. Neither recipe guarantees this item.

Calculate The Surgeon General trade-up odds →

How to trade up to Badlands Bandido

Use ten eligible Commando inputs from Terrifying Trove Collection for a 25.00% chance of Badlands Bandido, one of 4 Assassin outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 12.50%. Neither recipe guarantees this item.

Calculate Badlands Bandido trade-up odds →

How to trade up to Chiromancer's Kit

Use ten eligible Commando inputs from Terrifying Trove Collection for a 25.00% chance of Chiromancer's Kit, one of 4 Assassin outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 12.50%. Neither recipe guarantees this item.

Calculate Chiromancer's Kit trade-up odds →

How to trade up to Contaminated Carryall

Use ten eligible Commando inputs from Terrifying Trove Collection for a 25.00% chance of Contaminated Carryall, one of 4 Assassin outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 12.50%. Neither recipe guarantees this item.

Calculate Contaminated Carryall trade-up odds →

How to trade up to Duality of Mantle

Use ten eligible Commando inputs from Terrifying Trove Collection for a 25.00% chance of Duality of Mantle, one of 4 Assassin outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 12.50%. Neither recipe guarantees this item.

Calculate Duality of Mantle trade-up odds →

How to trade up to Sear Seer

Use ten eligible Assassin inputs from Terrifying Trove Collection for a 100.00% chance of Sear Seer, one of 1 Elite outputs. With five inputs from this collection in a compatible mixed contract, that chance becomes 50.00%. Neither recipe guarantees this item.

Calculate Sear Seer trade-up odds →

How Terrifying Trove Collection odds work

With ten Terrifying Trove Collection inputs, every next-rarity item shown in the applicable output table has an equal chance. The number of input item names does not change those single-collection odds.

In a mixed contract, each individual input contributes 10% to its collection. Five inputs from this collection therefore assign 50% of the contract to this collection, split evenly among its possible outputs.

Strange and non-Strange items cannot be combined in one contract. Their prices and profitability can differ substantially, so this page calculates them separately.

Market depth, price movement and seller availability are not modeled. Always open the marketplace links and confirm that ten clean, eligible inputs can actually be purchased before trading.

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