Explore the contents
Expand the odds table to see every item, its chance and average price.
Simulator: The Battle Pass Collection 2022
Virtual opening with real drop prices. Not gambling — nothing is charged or awarded.
Rare-tier chances are the long-run averages of the escalating odds Dota 2 shows in the treasure preview. In the game they start low and rise with every opening until the item drops, and every opening also gives a regular item; the simulator keeps the chances fixed and gives one item per opening, so every opening is independent.
Space or Enter opens
Opened 0
Spent $0.00
Received $0.00
Profit +$0.00
Your RTP —
Best drop —
Session run
Open a treasure to see the history of every drop here
The simulator sells and buys nothing. Prices are the best current market offers, and items without a reliable market price count as zero. Odds are fixed and never depend on earlier results.
Why use a treasure simulator
Compare the modes
Switch between Estimated odds and the other RTP modes to see how the chances of expensive and inexpensive drops change.
Look at a whole series
Run ×10 or ×50 and compare spending, drop value and session RTP. A short series can differ substantially from the model’s expected return.
What is inside The Battle Pass Collection 2022
The Battle Pass Collection 2022 holds 9 items and currently costs $0.54 to open. At the simulator’s fixed odds the average drop is worth 14% of that: of every 100 spent, 14 comes back.
How Dota 2 treasure odds work
Every opening gives one regular item, and Rare, Very rare, Ultra rare and Cosmically rare items are extra rolls on top. Since October 2018 the treasure preview shows each escalating item’s odds by opening: a Rare item starts at 1 in 2,000 and is certain by the 40th opening, an Ultra rare starts at 1 in 100,000, and each item’s counter resets when it drops. The simulator can’t see your counters, so it uses the long-run averages of those tables — 7.74% per Rare, 4.51% per Very rare and 2.26% per Ultra rare item — and the fixed 0.0004% for Cosmically rare items, with one item per opening.