Here is a quick guide for The Overmind achievement.
Specialization
Entropy
Encouragements
Brain Freeze
Sweet Tooth (Not important)
Tier 4
Harmony
Scare Tactics
Balanced Diet
The Garden of Delights
Tier 8
Royal Birthright
Acrobatics
Last Meal
Livewire
Tier 12
Daughters of the Forest
Beast Mastery (not important)
One-Track Mind
On a High
Tier 16
No Ceiling
Gourmet menu
Ghost Ship
Tier 20
Deep Sea Feast
Symbiotic Mycelium
Fresh Lemonade
Monocular Vision
Underground Aromatics

How it works
Use the brains only where you see a 🧠emoji.
Build the Forager’s Burrow
Build the Hauler Dormitory
Build the Evolution Chamber
Build the Farm
Build the Thrower’s Den
Build The Orchard
Build the Trap Factory
Build the Mushroom Laboratory
Build the Fishery
Buy the Mental Calculation
– unlock Royal Jelly 🧠for extra Larvae
Once the Royal Jelly is acquired, buy the following ants:
Forager’s Burrow – Buy 10 Foragers
Thrower’s Den – Buy 15 Throwers
Trap Factory- Buy 5 Trappers
The Fishery – 1 Boat and the Ghost Ship
Mushroom Laboratory – 25 Mycologist to activate activate 100% efficiency on all 4 shoorms.
As we picked Royal Birthright as a specialization, we can upgrade almost every single update for all the building. (Cold Affinity can wait for MAX unlock)
The Farm:
With all upgrades acquired, set it to farm Fire Aphids
The Orchard:
With all upgrades acquired, set to farm Ice Berry
The Fishery:
With all upgrades acquired, set to farm Sardine
At this point you should have a extra 🧠to use.
Build The Cuisine, upgrate the Sous-Chef and unlock Glace Flambee.
Use another 🧠to acquire Cordon Bleu.
Activate both Brochette and Glace Flambee.
Forager’s Burrow:
Buy 10 More Foragers
Acquire Sweet and Sour
Set to farm Citrus
Use another 2x 🧠to acquire jackpot and rainbow road.
Thrower’s Den:
Buy 10 more Throwers ( 25 are enough)
Mushroom Laboratory:
Buy 5 more Mycologist
Use another 🧠to buy Chanterelle
Buy 5 Lab Technicians
The Mine:
Wait for 1 Bilion apples and buy the Mine.
Prioritize: Cave Mushrooms, Lead, Icicles, Clay, Iron, Salt
Queen:
If Cold Affinity is not yet maxed, do it now.
More Ants:
Buy Foragers up to 26
Buy Trappers up to 10
Buy Mycologists up to 35
Buy Lab Technicians up to 10
Use one more 🧠to get another Boat.
At this point you should easily reach 6 B/min (Had spikes of 8B in my test run)
Now there is a bit of a grind to buy more larvae, so go make yourself a coffee, watch some reels, or just watch those little pixels move.
The Mine:
Aquire all of the updates..
Even use your last 🧠for Crown the sun.
With this, the setup is done.
Now starts the real GRIND for apples, to buy larvae.
Put everything into Mycologist and Lab Technicians.
Once in a while buy one Trapper just for the meat.
Reached 10B with the following ants:
Larvae 44
Foragers 26
Throwers 25
Trappers 12
Mycologist 37
Lab Technician 12
Boats 2 + Ghost Ship
Hope this helps you guys