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Free Operation Breakout Weapon Case opening simulator: $9.68 open cost, $4.24 EV, -56.16% Unbox ROI, 27 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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Operation Breakout Weapon Case
Simulate Operation Breakout Weapon Case opens at $9.68 ($7.19 case + $2.49 key) without spending real money. Compare runs to $4.24 EV and -56.16% Unbox ROI from the Details tab.
The Operation Breakout Weapon Case simulator rolls 27 outcomes across 4 rarities at $9.68 per open, tracking session win rate against $4.24 EV.
Sessions deviate from $4.24 EV and 5.47% profit chance — that variance is the point. Lucky sims do not prove $9.68 opens are +EV.
Hold Operation Breakout Weapon Case at $7.19 with 0.00% Investing ROI on Details; simulate opens at -56.16% Unbox ROI here — different intents.
CSProfit models Operation Breakout Weapon Case at $4.24 EV — faster than real opens, not a profit promise.
It rolls 27 Operation Breakout Weapon Case drops using the same weights as Details, values each hit at current prices and charges $9.68 per simulated open against $4.24 EV.
★ Butterfly Knife | Fade is 0.02% (about 1 in 5000). ★ Butterfly Knife | Crimson Web, ★ Butterfly Knife | Fade, ★ Butterfly Knife | Slaughter lead average value; common tiers dominate the 27-item pool across 4 rarities.
Yes — virtual opens use the $9.68 modeled cost ($7.19 + $2.49) without charging your Steam wallet.
Detail EV is $4.24 (-$5.44 vs $9.68 open). Individual sims often land below that because commons dominate 5.47% profit chance.
It uses CSProfit's 27-item probability table for Operation Breakout Weapon Case (updated June 3, 2026). It models randomness but is not Valve's server-side roll.
Modeled exp. profit is -$5.44 on $9.68 opens with -56.16% Unbox ROI. Most single opens still return items worth less than cost.
Click Open Once ($9.68 modeled) or Quick Sim for bulk runs. Compare history to $4.24 EV and 5.47% win benchmark.
You can hit ★ Butterfly Knife | Crimson Web ($2,879.01 avg.) in sim, but 0.02% rare drops remain unlikely. Session wins ≠ -56.16% long-run ROI.
Run 50+ Quick Sims, chart rarity distribution and compare win rate to 5.47% and EV to $4.24 — one lucky streak is noise.
The web tool is free. Real Operation Breakout Weapon Case opens still cost $9.68 (USD) on Steam if you choose to open for real.