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You need to have 15 farms, mines, factories, banks, temples, wizard towers, and shipments each, first, and buy the corresponding grandma-related upgrade, such as “Miner grandmas” or “Cosmic grandmas” and then you have access to the Bingo Center/Research Facility upgrade, taking you through 4 other research/facility upgrades and then the “One Mind” upgrade, and that starts the grandmapocalypse? The catch is that Bingo Center/Research Facility upgrade is 1 quadrillion cookies, and the cost doubles for each further upgrade you go into, capping at 32 quadrillion for One Mind. (It keeps growing for the 4 that come after, though, including Communal Brainsweep and Elder Pact). Find out more at https://cookieclicker.fandom.com/wiki/Cookie_Clicker_Wiki
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When should you trigger the Grandmapocalypse?
To trigger the Grandmapocalypse, you have to have seven types of grandmas unlocked. These are the farmer, worker, miner, cosmic, transmuted, altered, and grandmas' grandma. Once you have these, you'll get the Elder Achievement. Next, you need to unlock the Bingo Hall and Research Center for one quadrillion cookies.Should you start the Grandmapocalypse?
Start it immediately. It doesn't ruin your game or anything, just makes things funkier and enables wrath cookies and wrinklers. Wrinklers are good, because you can let them idle and then when you kill them they give you twice as much as you would've gained.Should I end the Grandmapocalypse?
When you're playing actively, it's usually best to either stop buying upgrades before Communal Brainsweep, or to buy the Elder Pledge, which only pauses the Grandmapocalypse. I've never found a reason to stop it for good.How do you unlock grandma types in Cookie Clicker?
The Grandmas reveal their true form. Purchase the upgrades in order as they unlock. Each time an upgrade pops up, purchase it and it will take about 30 minutes to unlock another upgrade. The final upgrade, One Mind, costs 16 quadrillion cookies.Cookie Clicker Walkthrough #2: The Grandmapocalypse
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