Rank 56 is the rank following 
Rank 55. This rank unlocks the researcher Thollum, who boosts Miners' power by 9x and 2x more for every upgrade. The minimum number of missions required to rank up to 
Rank 57 is 14 out of 17. This is the first rank that has a mission requiring Crop Dusters.
The next rank has a mission to upgrade 4 cards in the beginning, so don't upgrade any researchers in this rank other than for the spend science mission (or you could buy a supreme for 40k to complete it) unless it's really necessary.
| # | Name | Requirement | Reward |
|---|---|---|---|
| 1 | Exciting Boring Work! |  Own 44 M Deep Bores
|
 Wood
|
| 2 | R&D Asap! |  Spend 12,000 Science
|
 Stone
|
| 3 | Spade and Trade! |  Trade 33 Potato
|
Stone
|
| 4 | Tanks Very Much! |  Own 9.2 M Tanks
|
Wood
|
| 5 | Land in the Hand! |  Collect 74 YY Land
|
Wood
|
| 6 | Always Give 100%! |  Own 1 B Blood Banks
|
Wood
|
| 7 | Stronger than Dirt! |  Collect 598 WW Ore
|
Wood
|
| 8 | Artillery Deployed! |  Own 2.7 B Artilleries
|
Stone
|
| 9 | Perfect for Nuclear Wessels! |  Own 353,313 Nuclear Plants
|
Stone
|
| 10 | Cooler than Warm Storage! |  Own 11 B Cold Storages
|
Wood
|
| 11 | Pick a Card! Any Card! |  Collect 700 Cards
|
Stone
|
| 12 | Artillery Deployed! | Own 7.4 B Artilleries
|
Wood
|
| 13 | Hospitable Host-Pital! |  Own 5,708 Hospitals
|
Stone
|
| 14 | Hankering for Tankering! |  Own 8.1 B Tankers
|
Wood
|
| 15 | A Must for Dusting! |  Own 5 Crop Dusters
|
Stone
|
| 16 | Perfect for Nuclear Wessels! | Own 7.5 B Nuclear Plants
|
Wood
|
| 17 | Armed and Glorious! |  Collect 2.49 YY Bullets
|
Wood
|
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