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Free CS:GO Weapon Case opening simulator: $139.55 open cost, $42.74 EV, -69.37% Unbox ROI, 74 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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CS:GO Weapon Case
Simulate CS:GO Weapon Case opens at $139.55 ($137.06 case + $2.49 key) without spending real money. Compare runs to $42.74 EV and -69.37% Unbox ROI from the Details tab.
The CS:GO Weapon Case simulator rolls 74 outcomes across 4 rarities at $139.55 per open, tracking session win rate against $42.74 EV.
Sessions deviate from $42.74 EV and 4.85% profit chance — that variance is the point. Lucky sims do not prove $139.55 opens are +EV.
Hold CS:GO Weapon Case at $137.06 with 0.00% Investing ROI on Details; simulate opens at -69.37% Unbox ROI here — different intents.
CSProfit models CS:GO Weapon Case at $42.74 EV — faster than real opens, not a profit promise.
It rolls 74 CS:GO Weapon Case drops using the same weights as Details, values each hit at current prices and charges $139.55 per simulated open against $42.74 EV.
★ Bayonet | Fade is 0.00% (about 1 in 25000). ★ Karambit | Crimson Web, ★ M9 Bayonet | Crimson Web, ★ M9 Bayonet | Night lead average value; common tiers dominate the 74-item pool across 4 rarities.
Yes — virtual opens use the $139.55 modeled cost ($137.06 + $2.49) without charging your Steam wallet.
Detail EV is $42.74 (-$96.81 vs $139.55 open). Individual sims often land below that because commons dominate 4.85% profit chance.
It uses CSProfit's 74-item probability table for CS:GO Weapon Case (updated June 3, 2026). It models randomness but is not Valve's server-side roll.
Modeled exp. profit is -$96.81 on $139.55 opens with -69.37% Unbox ROI. Most single opens still return items worth less than cost.
Click Open Once ($139.55 modeled) or Quick Sim for bulk runs. Compare history to $42.74 EV and 4.85% win benchmark.
You can hit ★ Karambit | Crimson Web ($4,561.00 avg.) in sim, but 0.00% rare drops remain unlikely. Session wins ≠ -69.37% long-run ROI.
Run 50+ Quick Sims, chart rarity distribution and compare win rate to 4.85% and EV to $42.74 — one lucky streak is noise.
The web tool is free. Real CS:GO Weapon Case opens still cost $139.55 (USD) on Steam if you choose to open for real.