Gamma Case is a CS2 case with 17 items plus 50 gold entries. It costs $2.89; opening it with the key comes to $5.53. The expected value of the contents is $3.26 — a 58.9% unboxing ROI, or 65.3% when trade-up contracts are factored in.
Takeaway: an opening costs $5.53 and returns $3.26 on average — a 41.1% long-run loss. The median opening returns $0.38: half of all tries return that much or less. The key eats 48% of your spend. A full breakdown of every case is in the article Best CS2 cases in August 2026.
Where Gamma Case came from
More facts about Gamma Case
June 15, 2016release date · 10 yr ago
retiredweekly drops · as of 2026-07-02
+6.9%price over 2 weeks
822live listings in our DB
$259buy all 17 non-gold skins
Buying the contents outright is cheaper than unboxing: all 17 regular skins cost $259 — the price of 46.8 openings at $5.53 each. The priciest is M4A1-S | Mecha Industries at $109, the cheapest is SG 553 | Aerial at $0.20.
The case is retired from weekly drops: no new copies enter the game, and existing ones are consumed by openings.
No. An opening costs $5.53 ($2.89 for the case plus $2.64 for the key) while the contents average $3.26 — a 58.9% ROI. The chance a single opening returns more than you spent is 5.2%.
How much does it cost to open Gamma Case?
$5.53: the case itself is $2.89 (cheapest on CSFloat) plus the $2.64 key. Keys are sold only by Valve at a fixed price.
What do you usually get from Gamma Case?
The median single opening returns $0.38 — half of all openings return that much or less against a $5.53 cost. The best 10% of openings drop an item worth more than $1.89.
What does the "with contracts" column mean?
Some drops are worth more as trade-up contract inputs than sold outright. Counting the better of "sell" vs "feed into a contract", the Gamma Case ROI rises from 58.9% to 65.3%.
What are the knife odds in Gamma Case?
0.26% — roughly one opening in 391. The gold pool has 50 entries picked with equal probability; the wear rolls separately. That many openings cost about $2,164.
Where is Gamma Case cheapest?
Right now the low is $2.89 on CSFloat; the highest we track is $4.75 — a 64% spread between markets.
Prices are aggregated from 11 marketplaces into our own database and refresh automatically; USD values are converted from RUB at the current central-bank rate. CS2Price does not sell items — we compare prices and compute profitable trade-up contracts. Not affiliated with Valve.
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