Is this CS2 case simulator free?

Yes. It is completely free, needs no login, and is purely a simulation - no real money, keys, or items are involved. Your stats are saved only in your own browser.

Does it use the real CS2 case odds?

Yes. It uses Valve's official per-grade drop rates (Mil-Spec 79.92%, Restricted 15.98%, Classified 3.2%, Covert 0.64%) plus the 0.26% rare special (knife/gloves) slot, with live market prices for every skin, so the value you 'win' reflects real prices.

Can you make a profit opening cases?

No. Across many opens the expected value is well below the case + $2.50 key cost - the simulator's running Net P/L makes that obvious. Opening cases is gambling, not investing; this sim lets you see the math risk-free.

What is the rarest item you can unbox?

The rare special slot (a knife or pair of gloves) at roughly 0.26% - about 1 in 384 openings. Use 'Open until ★' to see how many cases it typically takes.

CS2 Case Simulator

Open any CS2 weapon case for free with Valve's real drop odds and live skin prices. Open one at a time with the spinner, or bulk-open ×5/×10 (or until you hit the ★ knife/glove). Your running profit/loss and unbox inventory are saved in your browser. It's a simulation, so no real money or items are involved.

Dreams & Nightmares Case

Open cost $3.72 (case + $2.50 key)

Butterfly Knife | Gamma Doppler

Butterfly Knife | Autotronic

Butterfly Knife | Black Laminate

Butterfly Knife | Lore

Butterfly Knife | Freehand

Butterfly Knife | Bright Water

Huntsman Knife | Gamma Doppler

Falchion Knife | Gamma Doppler

Bowie Knife | Gamma Doppler

Shadow Daggers | Gamma Doppler

Falchion Knife | Autotronic

Falchion Knife | Lore

Simulation only, using Valve's real per-grade odds + live skin prices. No real items, keys, or money are involved, and stats are saved only in your browser. Over many opens you'll see why the expected value is below the case + key cost.

Pick a case to open (44)

How the simulator works

Each open draws from the case's real pool using Valve's published per-grade odds - Mil-Spec 79.92%, Restricted 15.98%, Classified 3.2%, Covert 0.64% - plus the 0.26% rare special (knife or gloves) slot, renormalized over the grades present. The value of what you unbox uses each skin's live lowest market price, and the running Net P/L shows why, over many opens, you almost always end up below the case + $2.50 key cost. It is a risk-free way to see the math before spending real money. Want the data instead? See which cases lose the least on best cases to open.