To avoid clutter, I didn't add in 1/2/3/4/5 keys for p1/p3/p5/p7 for all 3 bosses. Here are the drop rates for single- and multiple-key drops, at the different playercounts. Countess keys are the rarest, and summoner keys are the most common. Also, having more than 1 player in the area in a p7 or p8 game will see no increase in drops. But, there is very little difference between p3 and p8 for key drops. NoDrop for each boss at various player counts: (NoDrop % per item slot)Īs you can see, p1 sucks. Its worth noting that running as a duo ( if in the same zone within a couple screens of the boss for the kill) you will have the same drops as being in p3 solo. Any hardcore key runner has seen three at once many times. This has probably never happened, but I know people who swear they've seen 4 at once. Each boss has 5 'slots' in which they can drop a key, so each boss could technically drop 5 at once. Key drop rates for all three bosses first cap out at p7 when solo, or (if you're weird and run keys in groups) at p4 with all 4 players in the area together when you make the kill. Key drop rates are nothing new, this post is mostly to compare how rates change differently with playercount, and how common it is to see multiple keys from the same kill.

Key of hate diablo 2