Released June 2016
30 knives
Gamma Case Simulator
Open the Gamma Case for free with Valve's real odds. Every skin, every rare special item, today's prices and what one opening is worth.
- skins
- 17 skins
- knives
- 30 knives
- Cost to open
- Cost to open $5.29
- Average return
- Average return 54%
Gamma Case simulator
Free and no real money, with Valve's published odds
- Opened
- 0
- Spent
- $0.00
- Drops worth
- $0.00
- Profit
- $0.00
Just for fun: nothing here costs or pays real money, and the items aren't real.
Is the Gamma Case worth opening?
- Cost to open
- $5.29
- $2.80 case + $2.49 key
- Average drop value
- $2.88
- Average return
- 54%
The average covers every possible drop, using the odds and market prices from Skinport, Pricempire.com and market.csgo.com (11 October 2026). Most single openings return much less than the cost; a few rare drops pull the average up.
Most valuable drops
★ Karambit | Gamma Doppler$1,693–$2,318
★ Karambit | Autotronic$744.38–$1,615
★ M9 Bayonet | Gamma Doppler$1,199–$1,468
★ M9 Bayonet | Autotronic$562.67–$1,290
★ Bayonet | Gamma Doppler$502.09–$1,192
Gamma Case odds
The drop chances Valve has published for every case, per rarity and per item.
| Rarity | Chance | Items | Per item |
|---|---|---|---|
| ★ Knife | 0.26% | 30 | 0.0087% |
| Covert | 0.64% | 2 | 0.32% |
| Classified | 3.2% | 3 | 1.07% |
| Restricted | 15.98% | 5 | 3.2% |
| Mil-Spec | 79.92% | 7 | 11.42% |
Weapon skins and knives can also drop as StatTrak™ (10% of drops; gloves never). On average one case in 385 gives a rare special item.
What's in the Gamma Case
Covert · 2 · 0.32% each
Glock-18
Wasteland Rebel
FN–BSStatTrak™$102.96–$121.49
M4A1-S
Mecha Industries
FN–BSStatTrak™$103.46–$212.08
Classified · 3 · 1.07% each
M4A4
Desolate Space
FN–BSStatTrak™$10.84–$67.52
P2000
Imperial Dragon
FN–BSStatTrak™$10.90–$23.41
SCAR-20
Bloodsport
FN–WWStatTrak™$10.89–$13.51
Restricted · 5 · 3.2% each
AUG
Aristocrat
FN–BSStatTrak™$1.19–$3.59
AWP
Phobos
FN–WWStatTrak™$1.90–$5.34
P90
Chopper
FN–BSStatTrak™$1.17–$2.87
R8 Revolver
Reboot
FN–BSStatTrak™$1.22–$5.76
Sawed-Off
Limelight
FN–BSStatTrak™$1.16–$5.82
Mil-Spec · 7 · 11.42% each
Five-SeveN
Violent Daimyo
FN–BSStatTrak™$0.32–$2.17
MAC-10
Carnivore
FN–BSStatTrak™$0.25–$2.07
Nova
Exo
FN–BSStatTrak™$0.25–$0.46
P250
Iron Clad
FN–BSStatTrak™$0.21–$6.46
PP-Bizon
Harvester
FN–BSStatTrak™$0.27–$4.66
SG 553
Aerial
FN–BSStatTrak™$0.28–$0.34
Tec-9
Ice Cap
FN–BSStatTrak™$0.35–$1.11
Gamma Case knives
The rare special pool: 30 finishes of Bayonet, Flip Knife, Gut Knife, Karambit, M9 Bayonet. Together they share the 0.26% rare drop chance.
Bayonet
Gamma Doppler
$502.09–$1,192
Bayonet
Lore
$194.83–$403.73
Bayonet
Autotronic
$234.40–$484.78
Bayonet
Black Laminate
$153.07–$287.24
Bayonet
Freehand
$154.81–$284.30
Bayonet
Bright Water
$141.81–$189.42
Flip Knife
Gamma Doppler
$379.56–$471.25
Flip Knife
Lore
$156.46–$265.88
Flip Knife
Autotronic
$149.32–$323.28
Flip Knife
Black Laminate
$113.09–$176.54
Flip Knife
Freehand
$125.40–$293.02
Flip Knife
Bright Water
$119.71–$137.60
Gut Knife
Gamma Doppler
$139.14–$225.66
Gut Knife
Lore
$72.05–$123.51
Gut Knife
Autotronic
$85.15–$205.00
Gut Knife
Black Laminate
$47.99–$132.87
Gut Knife
Bright Water
$45.12–$61.60
Gut Knife
Freehand
$51.87–$67.77
Karambit
Gamma Doppler
$1,693–$2,318
Karambit
Lore
$474.34–$1,145
Karambit
Autotronic
$744.38–$1,615
Karambit
Black Laminate
$579.88–$1,030
Karambit
Freehand
$464.22–$559.80
Karambit
Bright Water
$436.28–$539.84
M9 Bayonet
Gamma Doppler
$1,199–$1,468
M9 Bayonet
Lore
$391.86–$1,148
M9 Bayonet
Autotronic
$562.67–$1,290
M9 Bayonet
Black Laminate
$425.82–$671.55
M9 Bayonet
Bright Water
$299.27–$421.93
M9 Bayonet
Freehand
$345.21–$415.03
Gamma Case FAQ
What are the odds of getting a knife from the Gamma Case?＋
The chance is 0.26%, so on average about one case in 385. Valve published these odds in 2017, and the same drop system is used for every case.
Which knives are in the Gamma Case?＋
Bayonet (6), Flip Knife (6), Gut Knife (6), Karambit (6), M9 Bayonet (6). The number in brackets is how many finishes each one comes in.
How many skins are in the Gamma Case?＋
17 skins: 2 Covert, 3 Classified, 5 Restricted, 7 Mil-Spec. On top of those come 30 rare special items.
How much does it cost to open the Gamma Case?＋
About $5.29: $2.80 for the case and $2.49 for the key, at market prices on 11 October 2026.
Is the Gamma Case worth opening?＋
On average one opening gives items worth $2.88, which is 54% of the $5.29 it costs. Most openings give much less, and a few rare drops pull the average up. Try it for free in the simulator above first.
When was the Gamma Case released?＋
The Gamma Case was released in June 2016.
Can items from the Gamma Case be StatTrak™?＋
Yes. Weapon skins and knives can drop as StatTrak™, which happens on 10% of openings. Gloves never come as StatTrak™.
Contents from the game files (CSGO-API, MIT licence). Prices: Skinport, Pricempire.com and market.csgo.com, 11 October 2026. Odds: Valve's published case odds, estimates for capsules and souvenir packages. Play money only. Not affiliated with Valve. Prices for items nobody is selling right now are estimated from similar items.