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Free Gamma 2 Case opening simulator: $5.40 open cost, $3.85 EV, -28.72% Unbox ROI, 67 drops across 4 rarities. Test odds, history and win rate without spending keys. Updated June 3, 2026. Research and entertainment only.
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Gamma 2 Case
Simulate Gamma 2 Case opens at $5.40 ($2.91 case + $2.49 key) without spending real money. Compare runs to $3.85 EV and -28.72% Unbox ROI from the Details tab.
The Gamma 2 Case simulator rolls 67 outcomes across 4 rarities at $5.40 per open, tracking session win rate against $3.85 EV.
Sessions deviate from $3.85 EV and 5.55% profit chance — that variance is the point. Lucky sims do not prove $5.40 opens are +EV.
Hold Gamma 2 Case at $2.91 with 0.00% Investing ROI on Details; simulate opens at -28.72% Unbox ROI here — different intents.
CSProfit models Gamma 2 Case at $3.85 EV — faster than real opens, not a profit promise.
It rolls 67 Gamma 2 Case drops using the same weights as Details, values each hit at current prices and charges $5.40 per simulated open against $3.85 EV.
★ Bayonet | Gamma Doppler is 0.01% (about 1 in 19231). ★ Karambit | Gamma Doppler, ★ M9 Bayonet | Gamma Doppler, ★ Bayonet | Gamma Doppler lead average value; common tiers dominate the 67-item pool across 4 rarities.
Yes — virtual opens use the $5.40 modeled cost ($2.91 + $2.49) without charging your Steam wallet.
Detail EV is $3.85 (-$1.55 vs $5.40 open). Individual sims often land below that because commons dominate 5.55% profit chance.
It uses CSProfit's 67-item probability table for Gamma 2 Case (updated June 3, 2026). It models randomness but is not Valve's server-side roll.
Modeled exp. profit is -$1.55 on $5.40 opens with -28.72% Unbox ROI. Most single opens still return items worth less than cost.
Click Open Once ($5.40 modeled) or Quick Sim for bulk runs. Compare history to $3.85 EV and 5.55% win benchmark.
You can hit ★ Karambit | Gamma Doppler ($8,525.83 avg.) in sim, but 0.01% rare drops remain unlikely. Session wins ≠ -28.72% long-run ROI.
Run 50+ Quick Sims, chart rarity distribution and compare win rate to 5.55% and EV to $3.85 — one lucky streak is noise.
The web tool is free. Real Gamma 2 Case opens still cost $5.40 (USD) on Steam if you choose to open for real.