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Gamma Case

$5.61•56.2% ROI
Live RTP Stats

Open a case to see stats.

Case Contents (67 items)

Knives (50)

0.0007%
★ Gut Knife | Gamma Doppler
★ Gut Knife | Gamma DopplerEmeraldExtraordinary Gut Knife
$460.38 - $489.83
0.0007%
★ Karambit | Gamma Doppler
★ Karambit | Gamma DopplerEmeraldExtraordinary Karambit
$7,216.96 - $9,056.38
0.0007%
★ Flip Knife | Gamma Doppler
★ Flip Knife | Gamma DopplerEmeraldExtraordinary Flip Knife
$1,382.59 - $1,864.16

Weapon Skins (17)

0.32%
M4A1-S | Mecha Industries
M4A1-S | Mecha IndustriesCovert Rifle
$129.00 - $405.75
0.32%
Glock-18 | Wasteland Rebel
Glock-18 | Wasteland RebelCovert Pistol
$117.64 - $193.08
1.067%
P2000 | Imperial Dragon
P2000 | Imperial DragonClassified Pistol
$14.46 - $108.48
1.067%
SCAR-20 | Bloodsport
SCAR-20 | BloodsportClassified Sniper Rifle
$13.80 - $37.84
1.067%
M4A4 | Desolate Space
M4A4 | Desolate SpaceClassified Rifle
$16.75 - $195.00
3.196%
R8 Revolver | Reboot
R8 Revolver | RebootRestricted Pistol
$1.45 - $27.59
3.196%
P90 | Chopper
P90 | ChopperRestricted SMG
$1.40 - $11.36
3.196%
Sawed-Off | Limelight
Sawed-Off | LimelightRestricted Shotgun
$1.40 - $14.44
3.196%
AWP | Phobos
AWP | PhobosRestricted Sniper Rifle
$3.04 - $15.31
3.196%
AUG | Aristocrat
AUG | AristocratRestricted Rifle
$1.51 - $28.86
11.417%
MAC-10 | Carnivore
MAC-10 | CarnivoreMil-Spec SMG
$0.44 - $9.71
11.417%
PP-Bizon | Harvester
PP-Bizon | HarvesterMil-Spec SMG
$0.39 - $8.74
11.417%
P250 | Iron Clad
P250 | Iron CladMil-Spec Pistol
$0.44 - $19.34
11.417%
Tec-9 | Ice Cap
Tec-9 | Ice CapMil-Spec Pistol
$0.49 - $4.28
11.417%
Nova | Exo
Nova | ExoMil-Spec Shotgun
$0.44 - $1.49
11.417%
Five-SeveN | Violent Daimyo
Five-SeveN | Violent DaimyoMil-Spec Pistol
$0.51 - $6.05
11.417%
SG 553 | Aerial
SG 553 | AerialMil-Spec Rifle
$0.32 - $1.54

Gamma Case — Free CS2 Case Simulator

Open the Gamma Case with Valve's exact drop rates — 0.26% for knives. Real odds, real item pool, zero risk.

$5.61
Market Price
90%
extremely popular
3.8 ★
10.7K votes
0.26%
Knives odds
56.2%
Expected ROI

Drop Rates & Rarity(67 items)

Extraordinary (Knives/Gloves)50
0.26%
Covert2
0.64%
Classified3
3.20%
Restricted5
15.98%
Mil-Spec Grade7
79.92%

About the Gamma Case

The Gamma Case landed on June 15, 2016 with the “Gamma Exposure” update, marking Container Series #144. Inside, you'll find 67 skins spread across 5 rarity tiers. The chase items are the 5 knives across 6 finishes sitting at the top with a 0.26% drop chance. The most valuable drop is the ★ Karambit | Gamma Doppler (Emerald), worth up to $9,056.38 on the Steam Market.

Currently sitting at 90% popularity (extremely popular), the Gamma Case ranks among the most sought-after containers in CS2. The community rates it 3.8/5 across 10.7K votes. Notable pro players who own it include happy, adren, kioshima.

On the Steam Market, the Gamma Case trades at around $5.61. Factor in the $2.49 key and each opening runs you $8.10. Not sure it's worth the key? Open it here first — same odds, zero cost.

Based on current Steam Market prices and real drop rates, the Gamma Case sits at 56.2% ROI — for every $8.10 you spend (case + key), the average return is about $4.55 in items. Like most weapon cases, the math favors Valve — but a knives pull flips the equation entirely. That's the gamble.

Trivia

  • •On Glock-18 Wasteland Rebel, the numbers 7355608 are hidden on the back of the gun.
  • •Glock-18 Wasteland Rebel contains many hidden smaller painted messages and symbols that can be seen at a very low weapon condition, which are covered by the "Kill Them All" graffiti on higher conditions. Some of the contents include:
  • •7355608 (the C4 code)
  • •1337 Krew (leetspeak version of Elite Crew)
  • •BURN IT DOWN (overlaid on a painted Molotov Cocktail)
  • •A heart symbol
  • •A star symbol

Key Facts

  • •Knives: 0.26% drop rate
  • •StatTrak™ variants: 10% chance on eligible tiers
  • •Top item: ★ Karambit | Gamma Doppler (Emerald) — up to $9,056.38
  • •Expected ROI: 56.2% ($4.55 EV per $8.10 opening incl. key)
  • •Free simulator — real drop rates, no money required
  • •Every opening is independent — past results don't change future odds

FAQ

What items are in the Gamma Case?▼
The Gamma Case contains 67 skins across 5 rarity tiers: 50 ★ Rare Special, 2 Covert, 3 Classified, 5 Restricted, 7 Mil-Spec. That includes 5 knives across 6 finishes at the top. Market values range from $0.42 up to $7,216.96.
How do I open the Gamma Case for free?▼
You can open the Gamma Case right here on our Case Opening Simulator — it runs Valve's exact drop probabilities so every unboxing feels realistic. You can also check the expected ROI and per-item odds before you open. No account, no download, and no Steam login needed.
Are the Gamma Case drop rates realistic?▼
Yes. We use the exact drop probabilities Valve publishes for CS2 containers. For the Gamma Case, that means knives at 0.26% per opening. Every tier matches the real in-game odds.
What are the knives drop rates in the Gamma Case?▼
Knives drop at 0.26% per opening — roughly 1 in 1 in 385 tries. The Gamma Case has 5 knives across 6 finishes, so each individual one is even rarer.
What is the most valuable skin in the Gamma Case?▼
The ★ Karambit | Gamma Doppler (Emerald) is the top pull, valued at up to $9,056.38 on the Steam Market.
When was the Gamma Case added to CS2?▼
The Gamma Case was added to the game on June 15, 2016, alongside the "Gamma Exposure" update. It is classified as Container Series #144. It replaced the Chroma 3 Case as the newest case.
How much does the Gamma Case cost on the Steam Market?▼
Around $5.61 at time of writing. Add $2.49 for the key and each opening totals $8.10. You can try it risk-free in our simulator before buying.
What is the expected ROI of the Gamma Case?▼
56.2% — meaning a $8.10 opening (case + key) returns about $4.55 on average. Most value is locked behind the rare special items — the average opening returns less than cost.
Does the Gamma Case have StatTrak™ items?▼
Yes — any non-special skin can drop as StatTrak™ (10% chance), which tracks your kills in-game and typically adds a significant premium to the item's market value.