Rank 6 is the rank following Rank 5. It unlocks 2 different researchers: Derek Keeblander, who automates and speeds up Miners, and Dr. Shortstack, who increases the chance of getting bonus resources of ALL industries. It is the first rank that lets the player complete 3 missions at once. Completing 10 out of the 12 missions is the requirement to be able to rank up to Rank 7.

# Name Requirement Reward
1 Promote Researchers Upgrade 2 Cards Wood
2 Science Rules! Collect 125 Science Wood
3 Pave the Way Forward! Own 1,000 Roads Wood
4 More Potatoes, More Glory! Collect 500 BB Potatoes Stone
5 Plantation Association! Own 10,000 Plantations Wood
6 Pick A Card! Any Card! Collect 20 Cards Wood
7 Stronger Than Dirt! Collect 1 M Ore Wood
8 Excava-Terrific! Own 1,000 Excavators Wood
9 Earth Shattering Kaboom! Own 10 Blasting Sites Stone
10 R&D Asap! Spend 250 Science Wood
11 Sewer Pursuer Own 100 Sewers Wood
12 Grow-It-All! Own 10 Irrigations Wood

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