Random Booster pack, what's the deal?

[Mr_Bloodjack]

I don't really care about the cards but, how those random boosters works?
I'm asking now because I just received a 3 cards Subnautica pack today .
( A game I played for seven hours and the last time was in March 2016)

And during my time on Steam ( been here a while now), I think I got 2 packs total? including this one?

It's not a rant at all, I'm just curious if somebody know more than the vague explanation you can find on the steam page.

[B l u e b e r r y P o p t a r t]

The higher your Steam level is and eligible games you have (games that you collected all card drops) up the chance of you getting a booster pack, they are random if you get one with the rest of the people that are able to get one when someone crafts that game badge.

[Sazzouu]

How to be eligible for booster pack drops?

Own a game and have all card drops received.

How does the drop mechanism work?

When ever someone anywhere in the community crafts a badge for a specific game each eligible player gets an RNG to determine whether they receive a drop or not. You do not have to be friends with the one crafting the badge of the game in question.

How does one increase their probability of receiving a booster pack?

According to Valves official blog post on that topic you will receive a slight increase in your chances for each 10th Steam Level. That bonus is additive however no one can 100% confirm the value behind it.

Another thing is of course how many eligibilities you have collected - alias how many games you have.


I once created a formula based on empiric "research" and I came up with this...

(1 + Level / 10) * 0,01008 * NumberOfEligibleGames

... to calculate your probability of receiving ANY booster pack on ANY day. So far it had been quite accurate for me. However I guess the level bonus is hard-capped.