Dota 2 Treasures Explained: Contents, Keys and Reward Rules
Read the name, year, key and reward rules of a treasure before you pay for it.
Project editor:GrassKnuckles
A Dota 2 treasure gives one reward from its own reward pool; a bundle gives exactly the pieces it lists. Before you buy, read the container’s full name, year, key requirement and reward rules. The rare cosmetic on the promo card may be a bonus drop with its own odds.
Six things to check before opening
- Exact name and year. “Immortal Treasure I” alone could be any of several years’ reward pools.
- Key requirement. Check whether this specific container needs a key. Every treasure has its own rules.
- Normal contents. Find out what an ordinary opening gives: a wearable, a set bundle or another container.
- Bonus contents. Find out whether the rare item comes on top of the normal reward or replaces it.
- Odds. Read any displayed odds, rising-chance counter or duplicate protection for that exact treasure.
- Restrictions. Check market, trade and gift rules for the container and for the items it gives, separately.
Three examples of different structures
| Historical example | What makes it different |
|---|---|
| Immortal Treasure I 2015 | A normal Immortal reward with possible bonus rewards. The pictured items have different odds |
| Siltbreaker’s Treasure, 2017 | An event container tied to campaign progress, with a chance at a rare courier |
| Trust of the Benefactor 2017 | Can award an Immortal treasure, so the first opening may not give you a wearable |
These examples show how historical releases were built. Their old sale notices are history, and each year had its own odds and trade rules. Check every year separately, even when the icon looks the same.
A bundle and a random roll are different things
If a set bundle lists a weapon, a head piece and armour, compare those listed pieces with what you want to equip. Opening it gives you exactly those pieces. Buying one separate weapon gives you only that weapon. Read “Bundle”, “Treasure” and the item type before you read the price.
Follow one target back to the purchase
Say you want Moonfall itself, whatever else its treasure gives. Start with the exact item name. Then work out what the offer is: Moonfall itself, the treasure that can award it, or an outer container that can award that treasure. These are three different purchases, even when every card shows Luna artwork.
Here is a made-up chain: a $2 outer container awards an inner treasure that needs a $1 key. If you receive that treasure, the two openings cost $3 in total. Check each step before buying the outer container: its price may cover only the first step to a wearable.
When the contents screen is unclear
Separate the normal pool from the rare or extra reward section. A line saying “also has a chance” describes a bonus, and its odds are separate from the regular item’s. If the rules mention duplicate protection, find out which pool it covers and check whether it covers bonuses. When you cannot find the rule, treat the odds as unknown and skip dividing 100% by the number of pictures.
An intact bundle can be listed on the market under a different name from its pieces, so check permissions before unpacking if you may sell later. Once you know the reward structure, the treasure odds guide shows how to model the probabilities.
Opening a treasure uses it up. Count the unopened treasure and the cosmetic it gives as one asset.
A contents list is not an odds table
A contents list can be incomplete. It may leave out a nested reward, and a listed item may be a bonus rather than a normal drop. If a treasure lists 8 items, each one is unlikely to be a flat 12.5% chance. A listed item can be rare or common, and the list does not say which.
Use the list to trace the item you want, then read the reward rules in the game client. If the odds for your target are unknown, price the direct purchase instead and compare that with the cost of opening. You can browse every treasure in the treasure list.
Keep a log if you compare results
Write down the exact treasure, the attempt number, the normal reward, any extra reward and the odds shown before opening. Count every attempt, including the dull ones. A handful of openings cannot reveal a rare item’s true odds, but a complete log keeps you honest about your results.
If you want one specific item, look it up in the item list before opening anything. To compare the money side, the expected-value guide walks through the maths with a made-up drop table, and the treasure calculator runs your own numbers.