$121.78Prisma 2 Case
$0.87 case + $2.49 key = $3.36
−48% returnOpen free
Prisma Case contents & odds
Every skin the Prisma Case can drop, the odds of each, what it costs to open and what it is worth on average. It first sold on the Steam Community Market on 5 March 2019.
Case price
$0.89
Key
$15.24
Cost to open
$16.13
Expected value
$1.87
Return
−88%
Prices updated 10 November 2026. Key: $15.24 (market, 208 listings). Case price is the lowest listing (269 listings).
About the Prisma Case
The Prisma Case holds 17 weapon skins across four rarities, plus a rare special pool of 28 knives. The most valuable regular skin is the M4A4 | The Emperor, listed from $46.44 to $170.37 depending on wear. It costs $16.13 to open: $0.89 for the case and $15.24 for the key.
Because the rarity odds are fixed, the Prisma Case comes down to its list of skins. A knife or gloves drop is 0.26% per opening, about 1 in 385; open it 100 times and the chance of at least one is 23%. Want to see how that feels before paying? Try the Prisma Case in the free case simulator, which uses these exact odds, then compare it with every other case on the case odds page.
Prisma Case odds by rarity
Valve's disclosed rates are the same for every weapon case. What differs per case is how many skins share each tier, which sets the chance of each individual skin, and what those skins are worth.
| Rarity | Chance | Skins | Chance per skin | Average skin value | Adds to EV |
|---|---|---|---|---|---|
| Mil-Spec | 79.92% | 7 | 11.417% | $0.46 | $0.37 |
| Restricted | 15.98% | 5 | 3.196% | $2.16 | $0.35 |
| Classified | 3.20% | 3 | 1.067% | $6.71 | $0.21 |
| Covert | 0.64% | 2 | 0.320% | $58.30 | $0.37 |
| Rare special item | 0.26% | 28 | 0.009% | $218.45 | $0.57 |
| Total | 100.00% | $1.87 |
Expected value = sum of each rarity's chance times the average value of its skins. Skin value is the lowest listing at each wear, weighted by how much of the skin's float range falls in that wear, with the 10% StatTrak roll included. Wears with no live listing are left out of the average.
Prisma Case contents
Every skin below can drop. Odds are per opening; a price range is the lowest listing across the wears the skin can come in. Check the exact float range of any skin with the float checker.
Mil-Spec
79.92% for the tier, 11.417% per skin
MP7
Mischief
$0.21 to $1.92
11.417% per opening · StatTrak
MAC-10
Whitefish
$0.32 to $1.78
11.417% per opening · StatTrak
AK-47
Uncharted
$0.55 to $1.66
11.417% per opening · StatTrak
Galil AR
Akoben
$0.24 to $1.38
11.417% per opening · StatTrak
P90
Off World
$0.23 to $1.26
11.417% per opening · StatTrak
P250
Verdigris
$0.25 to $0.97
11.417% per opening · StatTrak
FAMAS
Crypsis
$0.23 to $0.91
11.417% per opening · StatTrak
Restricted
15.98% for the tier, 3.196% per skin
AWP
Atheris
$3.00 to $27.38
3.196% per opening · StatTrak
Desert Eagle
Light Rail
$0.91 to $13.04
3.196% per opening · StatTrak
Tec-9
Bamboozle
$0.46 to $5.43
3.196% per opening · StatTrak
UMP-45
Moonrise
$0.49 to $3.40
3.196% per opening · StatTrak
MP5-SD
Gauss
$0.44 to $3.00
3.196% per opening · StatTrak
Classified
3.20% for the tier, 1.067% per skin
XM1014
Incinegator
$5.32 to $57.93
1.067% per opening · StatTrak
AUG
Momentum
$4.58 to $27.20
1.067% per opening · StatTrak
R8 Revolver
Skull Crusher
$4.54 to $8.60
1.067% per opening · StatTrak
Covert
0.64% for the tier, 0.320% per skin
M4A4
The Emperor
$46.44 to $170.37
0.320% per opening · StatTrak
Five-SeveN
Angry Mob
$46.55 to $83.75
0.320% per opening · StatTrak
Rare special item
0.26% for the tier, 0.009% per item
★ Stiletto Knife
Ultraviolet
$142.93 to $1,356.60
0.009% per opening · StatTrak
★ Talon Knife
Doppler
$969.14 to $1,150.00
0.009% per opening · StatTrak
★ Stiletto Knife
Doppler
$566.08
0.009% per opening · StatTrak
★ Talon Knife
Marble Fade
$517.37 to $549.71
0.009% per opening · StatTrak
★ Talon Knife
Tiger Tooth
$401.14 to $528.00
0.009% per opening · StatTrak
★ Talon Knife
Ultraviolet
$228.66 to $415.34
0.009% per opening · StatTrak
★ Ursus Knife
Doppler
$288.37 to $386.18
0.009% per opening · StatTrak
★ Talon Knife
Damascus Steel
$285.59 to $385.26
0.009% per opening · StatTrak
★ Ursus Knife
Ultraviolet
$72.55 to $383.79
0.009% per opening · StatTrak
★ Stiletto Knife
Marble Fade
$250.67 to $362.84
0.009% per opening · StatTrak
★ Stiletto Knife
Tiger Tooth
$229.00 to $323.89
0.009% per opening · StatTrak
★ Talon Knife
Vanilla
$276.87
0.009% per opening · StatTrak
★ Ursus Knife
Marble Fade
$142.84 to $268.25
0.009% per opening · StatTrak
★ Navaja Knife
Doppler
$128.77 to $264.64
0.009% per opening · StatTrak
★ Talon Knife
Rust Coat
$212.81 to $245.66
0.009% per opening · StatTrak
★ Navaja Knife
Ultraviolet
$40.58 to $204.64
0.009% per opening · StatTrak
★ Stiletto Knife
Damascus Steel
$155.56 to $190.63
0.009% per opening · StatTrak
★ Stiletto Knife
Vanilla
$166.93
0.009% per opening · StatTrak
★ Ursus Knife
Tiger Tooth
$114.77 to $160.46
0.009% per opening · StatTrak
★ Stiletto Knife
Rust Coat
$119.08 to $135.56
0.009% per opening · StatTrak
★ Navaja Knife
Marble Fade
$71.28 to $105.60
0.009% per opening · StatTrak
★ Ursus Knife
Damascus Steel
$61.77 to $84.81
0.009% per opening · StatTrak
★ Navaja Knife
Tiger Tooth
$56.18 to $79.20
0.009% per opening · StatTrak
★ Ursus Knife
Rust Coat
$47.44 to $74.14
0.009% per opening · StatTrak
★ Navaja Knife
Damascus Steel
$37.76 to $66.19
0.009% per opening · StatTrak
★ Ursus Knife
Vanilla
$66.17
0.009% per opening · StatTrak
★ Navaja Knife
Rust Coat
$35.41 to $40.97
0.009% per opening · StatTrak
★ Navaja Knife
Vanilla
$37.47
0.009% per opening · StatTrak
Knives and gloves are the rare special pool: the case never shows which one until it opens, and the pool's average uses the average lowest listing across every item in it. See current knife prices on the cheapest knives page. “No listing” means nothing is on sale right now.
Other cases
$121.78
$112.74CS20 Case
$0.68 case + $21.99 key = $22.67
−93% returnOpen free
$463.68Shattered Web Case
$3.48 case + $2.49 key = $5.97
−45% returnOpen free
$236.61Danger Zone Case
$0.87 case + $15.11 key = $15.98
−91% returnOpen free
$306.00Horizon Case
$1.25 case + $16.18 key = $17.43
−88% returnOpen free
$115.00Clutch Case
$0.40 case + $14.26 key = $14.66
−93% returnOpen free
See all CS2 cases, or work out what a drop would leave you after Steam's cut with the Steam fee calculator.
FAQ
How much does it cost to open a Prisma Case?
$16.13 at the prices of 10 November 2026: $0.89 for the case plus $15.24 for the key. This case uses its own key, which Valve no longer sells in its store, so the key price is the lowest player listing (208 listings).
What are the odds in the Prisma Case?
Valve's disclosed rates apply: Mil-Spec 79.92%, Restricted 15.98%, Classified 3.20%, Covert 0.64% and a rare special item (knives) 0.26%. With 7 Mil-Spec skins, each one is about 11.42%.
What is the best skin in the Prisma Case?
Among the regular skins, M4A4 | The Emperor is the most valuable, listed from $46.44 to $170.37 depending on wear. The rare special pool (knives) holds the biggest prices, up to $1,356.60, at a combined 0.26% chance.
Is the Prisma Case worth opening?
On average, no: one opening is worth about $1.87 in lowest-listing prices against a cost of $16.13, a return of −88%. Selling on Steam takes a 15% fee on top, and the average is carried by very rare drops, so most single openings return less than they cost.
Can I open the Prisma Case for free?
Yes, in the case simulator. It uses this case's real contents, Valve's disclosed rates and the prices on this page, and it spins a reel for each opening. Nothing is bought and nothing is added to a Steam inventory. You can open up to five at once and the session tally shows what the cases and keys would have cost.
Do StatTrak skins drop from this case?
Yes. Any skin that exists as StatTrak has a 10% chance of being StatTrak when it drops. The expected value figures include that.
More CS2 tools
Case SimulatorOpen any CS2 case free with real odds, wear, float and prices.Case Odds & EVOdds per rarity and expected value of every case.Trade-Up CalculatorOdds, output floats, expected value and ROI for any ten-skin contract.Inventory Value CheckerPaste a Steam profile and price every CS2 item in it.Float CheckerDecode an inspect link, or look up any skin's float cap and wear tiers.Steam Market Fee CalculatorWhat a buyer pays and what you keep after Steam's 15% cut.
