A CS2 case key costs $2.49. That is Valve's fixed price, unchanged since 2013, although the amount in local currency differs in some regions. You can only buy a key in the game or through Steam at the moment you open a case; marketplaces sell cases, not keys. So one opening costs the case price plus $2.49, and with new cases that cost under a dollar, the key is almost the entire cost.
Fixed Key Price from Valve
The official CS2 case key price is $2.49. Valve set this price, and it has not changed since 2013. You buy the key from your in-game inventory: select a case, click "Unlock Container," and the game offers the key for that case. Since 2019, purchased keys cannot be transferred to other players, traded, or sold on the market, so in practice you pay for a key as part of a specific opening.
As a result, the entire case opening system is tightly controlled. This reduces fraud but takes away flexibility: for example, an extra key you bought by mistake cannot be sold.
Where to Buy CS2 Case Keys, and Can You Pay Less
There is no legitimate way to buy a new key for less than $2.49, since only Valve sells them. Offers of "cheap keys" on third-party sites are almost always scams, especially when they ask you to log in through Steam or hand over your API key. Never enter your Steam login on third-party sites.
The only keys on marketplaces are old ones bought before 2019 that can still be transferred. They are rare collector listings: for example, a Gamma Case Key goes for about $25 and a Revolver Case Key for about $15. Each of these keys only fits its own case and costs many times the official price, so they make no sense for opening cases.
Where you can save is the case itself. On LIS-SKINS, cases are usually cheaper than on the Steam Community Market, which keeps about 15% of every sale as fees. The key is still bought in the game at the official price.
Which Cases Require Keys and Which Don't
Every weapon case needs a key, including all new releases. New cases show up in the weekly drop for Prime accounts and are also sold on the market. Souvenir packages from tournaments open without a key; what they contain depends on the map and the match.
In some countries, such as France, cases are opened through the X-Ray Scanner: you see the item first and only then pay for the key, with the same odds. Our CS2 X-Ray Scanner guide covers how it works.
Here are examples of popular cases that require keys, with their prices on LIS-SKINS:
Recoil Case: about $0.20.
Snakebite Case: about $0.30.
Dreams & Nightmares Case: about $1.
Revolution Case: about $0.20.
Each of these cases requires a separate $2.49 key, and the key price does not depend on the case. Even if a case costs under a dollar, the key still costs $2.49. The reverse happens too: old cases sell for tens or hundreds of dollars, as our list of the most expensive cases in CS2 shows.
Players often criticize this system, but it stays the same because it is part of how CS2 is monetized.
Price History: Why $2.49 Does Not Change
Since 2013, the key price has stayed at $2.49. Despite inflation, currency swings, and rising skin prices, Valve has not changed the base price. The company has never explained this officially, but a fixed price has obvious advantages:
Simplicity and transparency. The cost of an opening is easy to calculate in advance.
Market control. Keys cannot be resold, so nobody speculates on them.
A stable economy. Case and skin prices move, while the cost of entry stays constant.
Players know that no matter what a case costs, the key price stays the same. That can be a plus or a minus, depending on what you unbox.
Why You Can't Sell a Key
Before 2019, keys could be sold, traded, stockpiled, and transferred. Valve said it switched this off to fight fraud schemes.
Now a key is bought right in the case opening window and used up immediately.
That is why the market has no new keys, only cases and a few old keys. The whole mechanic has become "closed" and safe from the developers' perspective.
Open or Sell?
Players have to decide: pay for a key and try their luck, or sell the case they received for a small but guaranteed amount. Here is the math of one opening:
Case: Revolution Case, about $0.20.
Key: $2.49.
Total opening cost: about $2.65.
Chance of a knife or gloves: 0.26%, roughly once in 385 cases; chance of a Covert (red) skin: 0.64%.
At current prices, the average return of a Revolution Case is about 34% of the opening cost, so on average you get back roughly $0.90 of $2.65. No case pays back on average: even the best one by this measure, CS:GO Weapon Case 3, returns about 70%, and the median across cases is about 46%. These are estimates from current prices, which change daily. See the return-based ranking of the best CS2 cases to open and the cases with the most valuable knives in our list of the best knife cases.
That is why experienced players treat opening cases as entertainment rather than an investment. If you want a specific skin, buying it directly is almost always cheaper than trying to unbox it.
Alternatives and Myths
Newcomers often hear that you can get a key for free or find one cheaper. That does not match reality:
Free keys do not exist.
Keys do not come from the weekly drop and do not come bundled with cases.
Any offer of new keys below the official price is a scam.
YouTube sometimes features videos with "ways to get keys," but they are either scams or rely on bugs that get fixed quickly.
The legitimate alternatives involve skins, not keys. You can get cases from the weekly Prime drop or through the paid Armory Pass, and you can work your way up in rarity with a trade-up contract: ten skins of one rarity become one skin of the next.
Frequently Asked Questions
Where can you buy CS2 case keys?
Only in the game or through Steam: when you open a case, the game offers a key for $2.49. Marketplaces sell cases and a few old keys, but no new ones.
How much does it cost to open one case in CS2?
The case price plus $2.49 for the key. New cases cost under a dollar, so one opening comes to roughly $2.60 to $3.50.
Can you trade a key for another item?
No. Keys bought after 2019 cannot be transferred, traded, or sold; they are used up when you open a case.
Are there cases that don't require a key?
Yes, tournament souvenir packages open without a key. Every weapon case requires one.
Fixed Price: The Reality of CS2
In 2026, CS2 case keys still cost $2.49, with no way to trade them and no alternatives. This rule shapes the entire case opening mechanic, and it will stay that way until Valve decides to rethink the model.
Every case opening is not just a shot at a rare item but part of a carefully built ecosystem. If you want to try your luck, $2.49 is the price of a chance at a skin, but keep in mind that on average a case returns less than half of what you spend.
