About the Ursus Knife
Ursus Knife is a Rare Special Item knife that drops from 4 of the 42 CS2 weapon cases: Horizon Case, Danger Zone Case, Prisma Case and Prisma 2 Case.
The earliest of them is the Horizon Case, released on 2 August 2018.
The chance per open ranges from 0.0050% to 0.0093% (best in the Prisma 2 Case, 1 in 10,769), because each case splits the Rare Special Item slot across a different number of finishes. One in ten of those drops is StatTrak.
It sits in tier 5 of 5 (Mil-Spec to Rare Special) and ranks #53 of 69 finishes in the Horizon Case by top-wear Steam price.
It sells for about $94.37, against $4.10 to open the Danger Zone Case (case plus $2.50 key), so it is worth more than one open.
Cases that drop the Ursus Knife
Chance per open = Valve's Rare Special Item odds divided by the number of Rare Special Item finishes in that case. StatTrak versions drop 10% of the time. Open any of these free in the simulator: demo, nothing won. 18+.
| Case | Chance per open | About 1 in | StatTrak | Cost / open | Released |
|---|---|---|---|---|---|
| Horizon Case1 of 52 Rare Special Item | 0.0050% | 20,000 | 0.00050% | $4.64 | 2 August 2018 |
| Danger Zone Case1 of 52 Rare Special Item | 0.0050% | 20,000 | 0.00050% | $4.10 | 6 December 2018 |
| Prisma Case1 of 28 Rare Special Item | 0.0093% | 10,769 | 0.00093% | $4.19 | 13 March 2019 |
| Prisma 2 Case1 of 28 Rare Special Item | 0.0093% | 10,769 | 0.00093% | $4.11 | 31 March 2020 |
Ursus Knife wears, float ranges and prices
Vanilla knives have no wear name, so there is a single price: $94.37, or $94.96 for StatTrak (Steam market 7-day average, 2026-10-03).
Ursus Knife FAQ
What are the odds of getting the Ursus Knife?
0.0050% per Horizon Case open (1 in 20,000); 0.0050% per Danger Zone Case open (1 in 20,000); 0.0093% per Prisma Case open (1 in 10,769); 0.0093% per Prisma 2 Case open (1 in 10,769). That is Valve's 0.26% Rare Special Item chance split evenly across the finishes in that tier. A StatTrak copy is one tenth of that, 0.00093% at best.
Which CS2 cases drop the Ursus Knife?
Horizon Case, Danger Zone Case, Prisma Case and Prisma 2 Case. The cheapest to open is the Danger Zone Case at $4.10 including the key.
How much is the Ursus Knife worth?
About $94.37, or $94.96 for StatTrak on the Steam market (7-day average, 2026-10-03). Vanilla knives have no wear name, so there is one price.
Other Rare Special Item finishes in the Horizon Case
All CS2 skins by rarity · Open the Prisma 2 Case in the simulator (demo, nothing won, 18+) · How CS2 case odds work
This is a free simulator for entertainment: a demo, nothing is won and no money is used. Odds are Valve's published odds; wear and Doppler phase splits are estimated models, not Valve figures. Item values are indicative Steam market prices. Counter-Strike 2 and its item images are property of Valve Corporation. CaseBattles is not affiliated with or endorsed by Valve. 18+ only. Responsible gaming.