Rank 83 is the rank following Rank 82. No new researchers unlock at this rank. You must complete at least 18 out of the 21 missions available to move on to Rank 84. Rank 83 is the rank with the first mission requiring Ozone Collectors.

# Name Requirement Reward
1 Stronger Than Dirt! Collect 2.3 HHH Ore Wood
2 Pick a Card! Any Card! Collect 1,400 Cards Stone
3 Artillery Deployed! Own 1.7 B Artilleries Wood
4 A Must for Dusting! Own 27 B Crop Dusters Stone
5 Land in the Hand! Collect 923 LLL Land Wood
6 Hospitable Host-Pital! Own 8.5 B Hospitals Stone
7 Armed and Glorious! Collect 126 GGG Bullets Wood
8 Hankering for Tankering! Own 19 B Tankers Stone
9 More Potatoes, More Glory! Collect 8.7 SSS Potatoes Wood
10 R&D Asap! Spend 12,000 Science Stone
11 Coast Busters! Own 9 M Coast Guards Stone
12 Armed and Glorious! Collect 27 HHH Bullets Wood
13 More Potatoes, More Glory! Collect 643 SSS Potatoes Wood
14 More Like Your-Ranium! Own 75 B Uranium Mines Stone
15 Land in the Hand! Collect 88 RRR Land Wood
16 Coast Busters! Own 14 B Coast Guards Stone
17 Dome Rhymes With Home! Own 6,363 Biodomes Stone
18 Armed and Glorious! Collect 4.2 LLL Bullets Wood
19 Red Eye Flight! Own 75 B Airports Stone
20 Collecting Collector Collection! Own 6 Ozone Collectors Stone
21 More Potatoes, More Glory! Collect 3.5 VVV Potatoes Wood
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