CS2 Knife Drop Rate: What Are the Real Odds of Getting a Knife from a Case

Every streamer who unboxes a knife makes it look like a realistic outcome. Statistically, it is not. The CS2 knife odds are low enough that most players who open cases will never receive one – and understanding the exact numbers before spending money is more useful than finding that out afterward.

What Are the Odds of Getting a Knife in CS2

The chance of receiving a knife from a standard CS2 case is approximately 0.26%, or roughly 1 in 385 openings. These figures come from drop rate data officially published by Valve for the Chinese market, where local regulations require disclosure of loot box probabilities. The same rates apply globally – the Chinese disclosure is simply the only official source where Valve has confirmed them in writing.

That 0.26% covers the Exceedingly Rare tier as a whole. In cases where that tier contains both knives and gloves, the 0.26% is split between them – the chance of a knife specifically is lower than 0.26% in those cases.

Players looking to open cases with knife drops can find options in the CS2 knife case section on GudDrop.

Full CS2 Case Drop Rate Breakdown

Valve's officially published CS2 case drop rate data covers all five rarity tiers. Mil-Spec (blue) items drop at approximately 79.92% – the large majority of every opening. Restricted (purple) items follow at approximately 15.98%. Classified (pink) sits at approximately 3.20%. Covert (red) items drop at approximately 0.64%. The Exceedingly Rare tier – knives and gloves – comes in at approximately 0.26%.

Each tier is roughly four to five times rarer than the one below it. That multiplier compounds quickly: a Covert skin is about 2.5 times more likely than a knife, a Classified skin is about 5 times more likely than a Covert, and a Mil-Spec item is roughly 300 times more likely than a knife. The CS2 case odds structure is why knife prices are so high relative to other case contents – the supply entering the market from case openings is genuinely small compared to blue or purple items.

How Many Cases Do You Need to Open to Get a Knife

The chances of getting a knife in 100 cases are approximately 22.9% – meaning about 1 in 4 players who open 100 cases will receive a knife, and roughly 3 in 4 will not. At 10 cases, the cumulative probability sits around 2.5%. At 267 cases, the probability crosses 50% – meaning half of all players who open that many cases will have received at least one knife by that point. Reaching 90% cumulative probability requires approximately 885 case openings.

These figures answer the question of how many cases does it take to get a knife in probability terms – not as a guarantee. A player who has opened 266 cases without a knife does not have a higher chance on the 267th opening than on the first. CS2 has no pity system – no mechanic that increases drop probability based on prior openings. Valve has confirmed this explicitly: each case opening is an independent event with the same fixed odds regardless of how many cases have been opened before it.

The practical consequence is direct. A player who has opened 200 cases without a knife is not "due" for one. The odds on the next opening are identical to the odds on the first.

What Makes Knife Odds Even Lower

The 0.26% figure applies to any knife drop from the Exceedingly Rare tier. The CS2 knife odds for a specific configuration are lower than that baseline in three compounding ways.

StatTrak versions of knives drop at approximately one-tenth the rate of standard versions – putting the chance of a StatTrak knife at roughly 0.026%, or about 1 in 3,850 openings. That figure applies to StatTrak knives as a category, not to any specific type or finish.

If a case contains multiple knife types – which most do – the 0.26% is distributed across all of them. A case with ten knife types gives each type a roughly equal share of that pool, meaning the chance of any single knife type is approximately 0.026% before StatTrak is factored in. Targeting a specific knife type from a multi-knife case multiplies the required openings accordingly.

Pattern and phase add a third layer. A Doppler Phase 2 Karambit is one outcome among four standard Doppler phases plus three special phases. A Case Hardened Blue Gem requires a specific pattern index from a pool of approximately 1,000. Each additional constraint on the target reduces the effective probability further, which is why the expected cost of targeting something like a Factory New Karambit Blue Gem Pattern #387 runs into the tens of millions of dollars in case opening value.

Knives vs. Gloves: What Is in the Gold Slot

Not every CS2 case puts knives in the Exceedingly Rare slot. Several cases – including the Glove Case, the Recoil Case, and others – place gloves alongside or instead of knives in that tier. The 0.26% CS2 case odds figure covers the full Exceedingly Rare pool in those cases, which means the chance of a knife specifically is lower than 0.26% when gloves are also in the pool.

Before opening a case with the goal of getting a knife, checking the case content list confirms what case has the highest chance of a knife for your target – specifically whether the Exceedingly Rare tier contains knives only, or knives and gloves together. On GudDrop, the full content list for every case is visible before opening.