Previously, the common way to farm for keys was for 2+ players to head to the same area and spread out, rushing through the Fields of Misery, Dahlgur Oasis, Stonefort, or
Silver Spire Level 1 Gardens of Hope 2nd Tier. Whoever found the keywarden would alert the others and wait, not killing the KW until everyone was in the vicinity so they would be eligible for the drop.
That was the old way. You can still do that, and it might even be faster on the really large areas (Dhalgur Oasis), but characters in the game no longer need to be in proximity to earn a key drop. Each Keywarden will drop a key for everyone in the game, or no one — it’s all or nothing, so everyone gets a key, or no one does, from each Keywarden, and the best odds are still just 50% on T6.
The key does *not* just appear in your inventory like a Horadric Cache. Each character must go to the spot of the Keywarden’s death to pick it up, but since everyone or no one gets each key, everyone stays in synch for group Infernal Machine efforts. This also allows players to split-farm Keywardens, spreading out to different acts and searching simultaneously. You just have to let everyone else know if a key drops, and then drop a banner or wait until the others arrive, so they don’t have to search the level, since Keys still do not show up on the map as Legendary Drops.
Also, the recent Blood Shard exploit hotfix did *not* change how Keywardens drop. I split farmed a few yesterday in an MP game and the key drops were still global.
Do you guys like the change? It makes key farming a bit less teamwork, with people splitting into different acts and exploring solo, rather than spreading out to search the same area simultaneously, but I think it’s a good idea to make the drops global, just so everyone in the game stays in synch on their keys. It was always annoying in the past if you had four people farming and one guy got really unlucky and was stuck on something like 6/2/7/9 keys while everyone else had at least 4 of each key and wanted to move on to the Ubers.
Related point that’s been made many times, but can we get a reset the Ubers option after all 4 portals have been cleared? Stick on the annoying Rift 30s timer if necessary, but it’s annoying to have to keep creating new games when you’re doing multiple Infernal Machines in a row.