Rank 20 is the rank following 
Rank 19. Two researchers unlock at this rank. The first being J.D.M.D., who automates and speeds up Ambulances, and the second being Sir Lance Egon, who grants more comrades when trading placebos. After completing 12 out of the 15 missions, the player is allowed to rank up to 
Rank 21.
| # | Name | Requirement | Reward |
|---|---|---|---|
| 1 | Professional Burrower! |  Own 28,000 Mines
|
 Wood
|
| 2 | Trade Ore-ganization! |  Trade 11 Ore
|
 Stone
|
| 3 | Promote Researchers |  Upgrade 2 Cards
|
Wood
|
| 4 | Bustling Bunkers! |  Own 3.8 M Bunkers
|
Wood
|
| 5 | More Potatoes, More Glory! |  Collect 200 LL Potatoes
|
Stone
|
| 6 | Pick a Card! Any Card! |  Collect 80 Cards
|
Wood
|
| 7 | Ambulance-A-Lot! |  Own 911,911 Ambulances
|
Wood
|
| 8 | Professional Burrower! | Own 9 M Mines
|
Wood
|
| 9 | R&D Asap! |  Spend 700 Science
|
Stone
|
| 10 | Exciting Boring Work! |  Own 10 Deep Bores
|
Wood
|
| 11 | Glass Walls! |  Own 38 M Greenhouses
|
Wood
|
| 12 | Ambulance-A-Lot! | Own 20 M Ambulances
|
Stone
|
| 13 | Stronger than Dirt! | Collect 600 II Ore
|
Wood
|
| 14 | Glass Walls! | Own 83 M Greenhouses
|
Wood
|
| 15 | Exciting Boring Work! | Own 1,888 Deep Bores
|
Stone
|
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