About the Prisma Case
Open the Prisma Case for free (released 2019) using the real item pool and Valve's published drop odds. Pick the Prisma Case in the simulator above, spin a single case or bulk-open hundreds, and see what you would really pull: M4A4 | The Emperor and Five-SeveN | Angry Mob at Covert, and Navaja Knife, Stiletto Knife, Talon Knife, Ursus Knife as the Rare Special Item. Nothing costs money and nothing is rigged.
What's inside the Prisma Case
Indicative Steam market prices across wears (Factory New to Battle-Scarred), updated 2026-10-03. StatTrak versions are worth more.
| Rarity | Item | Price range |
|---|---|---|
| Rare Special Item (knife or gloves) | ★ Talon Knife | Doppler | $1,119.63 to $1,150.00 |
| Rare Special Item (knife or gloves) | ★ Talon Knife | Tiger Tooth | $561.95 to $804.81 |
| Rare Special Item (knife or gloves) | ★ Talon Knife | Marble Fade | $729.60 to $773.85 |
| Rare Special Item (knife or gloves) | ★ Talon Knife | Ultraviolet | $296.73 to $747.62 |
| Rare Special Item (knife or gloves) | ★ Stiletto Knife | Doppler | $665.45 to $703.35 |
| Rare Special Item (knife or gloves) | ★ Talon Knife | Damascus Steel | $396.81 to $461.73 |
| Rare Special Item (knife or gloves) | ★ Stiletto Knife | Ultraviolet | $190.04 to $442.75 |
| Rare Special Item (knife or gloves) | ★ Stiletto Knife | Marble Fade | $385.87 to $442.10 |
| Rare Special Item (knife or gloves) | ★ Talon Knife | $399.73 |
| Rare Special Item (knife or gloves) | ★ Stiletto Knife | Tiger Tooth | $352.40 to $382.19 |
| Rare Special Item (knife or gloves) | ★ Ursus Knife | Doppler | $339.93 to $360.34 |
| Rare Special Item (knife or gloves) | ★ Talon Knife | Rust Coat | $317.81 to $352.50 |
| Rare Special Item (knife or gloves) | ★ Ursus Knife | Ultraviolet | $93.51 to $343.62 |
| Rare Special Item (knife or gloves) | ★ Stiletto Knife | Damascus Steel | $223.05 to $291.30 |
| Rare Special Item (knife or gloves) | ★ Stiletto Knife | $240.51 |
| Rare Special Item (knife or gloves) | ★ Ursus Knife | Marble Fade | $194.32 to $230.02 |
| Rare Special Item (knife or gloves) | ★ Navaja Knife | Doppler | $154.87 to $228.52 |
| Rare Special Item (knife or gloves) | ★ Ursus Knife | Tiger Tooth | $163.19 to $192.88 |
| Rare Special Item (knife or gloves) | ★ Stiletto Knife | Rust Coat | $170.39 to $172.72 |
| Rare Special Item (knife or gloves) | ★ Navaja Knife | Marble Fade | $105.67 to $130.88 |
| Rare Special Item (knife or gloves) | ★ Ursus Knife | Damascus Steel | $91.12 to $124.66 |
| Rare Special Item (knife or gloves) | ★ Navaja Knife | Ultraviolet | $50.87 to $116.55 |
| Rare Special Item (knife or gloves) | ★ Navaja Knife | Tiger Tooth | $82.20 to $100.93 |
| Rare Special Item (knife or gloves) | ★ Ursus Knife | $94.37 |
| Rare Special Item (knife or gloves) | ★ Ursus Knife | Rust Coat | $68.05 to $70.99 |
| Rare Special Item (knife or gloves) | ★ Navaja Knife | Damascus Steel | $51.57 to $64.13 |
| Rare Special Item (knife or gloves) | ★ Navaja Knife | Rust Coat | $44.96 to $54.91 |
| Rare Special Item (knife or gloves) | ★ Navaja Knife | $50.38 |
| Covert (red) | M4A4 | The Emperor | $66.46 to $307.63 |
| Covert (red) | Five-SeveN | Angry Mob | $62.26 to $89.18 |
| Classified (pink) | AUG | Momentum | $6.34 to $42.12 |
| Classified (pink) | XM1014 | Incinegator | $6.17 to $40.69 |
| Classified (pink) | R8 Revolver | Skull Crusher | $6.23 to $8.49 |
| Restricted (purple) | AWP | Atheris | $4.45 to $37.64 |
| Restricted (purple) | Desert Eagle | Light Rail | $1.40 to $13.34 |
| Restricted (purple) | Tec-9 | Bamboozle | $0.72 to $8.14 |
| Restricted (purple) | MP5-SD | Gauss | $0.64 to $4.76 |
| Restricted (purple) | UMP-45 | Moonrise | $0.81 to $2.02 |
| Mil-Spec (blue) | MAC-10 | Whitefish | $0.28 to $4.76 |
| Mil-Spec (blue) | MP7 | Mischief | $0.30 to $2.81 |
| Mil-Spec (blue) | AK-47 | Uncharted | $0.85 to $2.50 |
| Mil-Spec (blue) | Galil AR | Akoben | $0.31 to $2.16 |
| Mil-Spec (blue) | P250 | Verdigris | $0.37 to $1.66 |
| Mil-Spec (blue) | FAMAS | Crypsis | $0.31 to $1.59 |
| Mil-Spec (blue) | P90 | Off World | $0.27 to $1.43 |
Prisma Case drop odds
These are Valve's official CS2 case odds, used for every open in the simulator:
| Rarity | Chance per open | Items in this case |
|---|---|---|
| Mil-Spec (blue) | 79.92% | 7 |
| Restricted (purple) | 15.98% | 5 |
| Classified (pink) | 3.20% | 3 |
| Covert (red) | 0.64% | 2 |
| Rare Special Item (knife or gloves) | 0.26% | 28 |
Is the Prisma Case worth opening?
Opening one Prisma Case costs about $4.19: $1.69 for the case plus $2.50 for the key. Weighting every item by its real drop chance, wear and the 10% StatTrak chance, the expected value of one open is about $2.97, or roughly 71% of what you spend. Over 100 opens that is an expected loss of around $122.41. Almost all of the value sits in the Covert and knife slots, which together land on just 0.90% of opens, so most real openings return far less than the average. That is why trying it in the simulator first is the smart move.
Prisma Case FAQ
What are the odds of getting a knife from the Prisma Case?
Every Prisma Case open has a 0.26% chance (about 1 in 385) of a Rare Special Item. In this case that means Navaja Knife, Stiletto Knife, Talon Knife, Ursus Knife. Covert skins drop 0.64% of the time, Classified 3.20%, Restricted 15.98% and Mil-Spec 79.92%.
Is the Prisma Case worth opening?
On average one Prisma Case returns about $2.97 in Steam market value against roughly $4.19 for the case plus a key, about 71% back. Over many opens you should expect to lose money; open it for fun in the simulator first.
What is the best item in the Prisma Case?
The top Covert skin is M4A4 | The Emperor, followed by Five-SeveN | Angry Mob. The rarest drops are the Rare Special Items: Navaja Knife, Stiletto Knife, Talon Knife, Ursus Knife.
Is this Prisma Case simulator free?
Yes. The simulator is free, needs no account and never uses real money or awards real items. It uses the real Prisma Case item pool and Valve's published odds so you can see how opening it really plays out.
Simulate related cases
Ready for real cases?
When the demo is not enough, open real CS2 cases on CaseBattles.gg with provably fair results you can verify, or take on other players in case battles. 18+ only, play responsibly.