What are the odds of getting a knife from the Prisma 2 Case?

The odds of pulling the rare special item (a knife) from the Prisma 2 Case are 0.26% per opening — Valve's published rate for the gold "Rare Special Item" tier. Across 100 openings you have roughly a 22.9% chance of hitting at least one, so expect to open around 385 cases on average before a knife drops.

What are the drop rates for the Prisma 2 Case?

Prisma 2 Case uses Valve's standard weapon-case odds: Mil-Spec 79.92%, Restricted 15.98%, Classified 3.20%, Covert 0.64%, and the special knife/gloves tier 0.26%. Within each tier every skin is equally likely.

What is the chance of a Covert from the Prisma 2 Case?

Any Covert (red) skin drops at 0.64% per opening. With 2 Covert skin(s) in this case, each specific Covert has about a 0.320% chance of being the one you unbox.

Is opening the Prisma 2 Case worth it?

On expected value, no. A key costs $1.80 and around 79.92% of openings return a low-value Mil-Spec skin, so the average opening loses money. High-value Covert and knife pulls are rare (0.64% and 0.26%). Most players open cases for skins they want rather than profit.

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$1.8Key Price

2020Year Released

April 2020Release Date

WeaponCase Type

Prisma 2 Case

Name: Prisma 2 Case
Brand: Valve
Price: 1.80 USD
Availability: InStock

Second Prisma case with iridescent light refraction effects and Horizon Knives.

Release Date

April 2020

Year

2020

Key Price

$1.8

Type

🎒 Weapon Case

Drop Odds Breakdown

See how these odds play out in practice with our Case Simulator or calculate expected costs with the Case Odds Calculator.

Mil-Spec79.92%

Restricted15.98%

Classified3.20%

Covert0.64%

Special0.26%

Rarity Tier	Chance	Items	Per-Item Odds
Special (Knife / Gloves)	0.26%	1 (knife/gloves)	—
Covert	0.64%	2	0.320%
Classified	3.20%	3	1.067%
Restricted	15.98%	5	3.196%
Mil-Spec	79.92%	7	11.417%

⭐ Special Item (Knife / Gloves)0.26%The gold “Rare Special Item” drop — Horizon Knives. About a 22.9% chance of at least one across 100 openings (~1 in 385).

Odds are Valve’s published container probabilities; each item within a tier is equally likely, so per-item odds are the tier chance divided by the number of items in that tier. StatTrak appears on roughly 10% of non-special drops. Souvenir and other container types can differ.

ROI Analysis

Average Loss per Case

$-2.25

79.92% of openings return a low-value Mil-Spec — opening a case loses money on average

Covert / Knife Odds

0.64% / 0.26%

Chance of a Covert (red) or the rare special (knife/gloves) per opening

Recommendation

Trade Up

Use trade-up calculator for better ROI

Case Contents

All 17 possible weapon skins in this case, grouped by rarity:

Covert (2 items)

Classified (3 items)

MAG-7

Vermillion Cloak

AWP

Slate

Desert Eagle

Wicked Sick

Restricted (5 items)

Glock-18

Acid Fade

SG 553

Mecha Industries

FAMAS

Retribution

SSG 08

Grip

Sawed-Off

Eviction

Mil-Spec (7 items)

P250

Full Stop

R8 Revolver

Animus

CZ75-Auto

Tiger Moth

SG 553

Sky Stalker

SCAR-20

Afterimage

Tec-9

Facility

Nova

Off World

Case Opening Tips

Case opening has negative expected value on average — try the Case Simulator risk-free first
Invest in skins you love rather than opening for profit
Consider float quality and condition when valuing items — use the Float Checker to analyse wear values
StatTrak and Souvenir variants are rarer and more valuable
Check live prices with the Price Tracker and Market Trends before buying
Keep keys on secure accounts and enable Steam Guard
Use the Skin Compare tool to compare similar skins before choosing
Use the Trade-Up Calculator for better ROI than opening cases
Check your current inventory value with the Inventory Lookup