Rank 4 is the rank following 
Rank 3. It unlocks 2 different researchers: Big Paulie, who automates and speeds up Clearcut, and Heck Axe, who increases the bonus resources when lucky in the Land industry. During this rank, the player can only complete 2 missions at a time. It is the first rank that isn't part of the tutorial. Rank 4 is the fourth and last rank which requires the player to complete every mission in order to rank up. In this case, the player will only be able to rank up to 
Rank 5 after completing all the 8 missions.
| # | Name | Requirement | Reward |
|---|---|---|---|
| 1 | Science Rules! |  Collect 50 Science
|
 Wood
|
| 2 | Salt of the Earth! |  Own 1 M Farmers
|
Wood
|
| 3 | Chop Chop! |  Own 100 Clearcut
|
Wood
|
| 4 | Promote Researchers |  Upgrade 2 Cards
|
Wood
|
| 5 | Pave the Way Forward! |  Own 10 Roads
|
Wood
|
| 6 | Land in the Hand! |  Collect 5 B Land
|
Wood
|
| 7 | Plantation Association! |  Own 100 Plantations
|
Wood
|
| 8 | More Potatoes, More Glory! |  Collect 500 T Potatoes
|
Wood
|
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