Rank 89 is the rank following Rank 88. No new researchers unlock at this rank. 18 missions out of 21 are required to rank up to Rank 90.

# Name Requirement Reward
1 Stronger Than Dirt! Collect 2.6 III Ore Wood
2 Perfect for Nuclear Wessels! Own 8.5 B Nuclear Plants Wood
3 Science Rules! Collect 14,000 Science Stone
4 Better than Friendship! Own 13 B Battleships Wood
5 A Healthy People! Collect 24 DDD Placebos Wood
6 A Must for Dusting! Own 157 B Crop Dusters Stone
7 Land in the Hand! Collect 88 PPP Land Wood
8 Promote Researchers Upgrade 2 Cards Stone
9 Coast Busters! Own 20 B Coast Guards Stone
10 Armed and Glorious! Collect 793 JJJ Bullets Wood
11 Red Eye Flight! Own 55 B Airports Stone
12 Stronger Than Dirt! Collect 4.3 LLL Ore Wood
13 A Must for Dusting! Own 200 B Crop Dusters Stone
14 Armed and Glorious! Collect 85 MMM Bullets Wood
15 Noob Tube! Own 144 Tube Travels Stone
16 Coast Busters! Own 33 B Coast Guards Stone
17 Stronger Than Dirt! Collect 5.1 RRR Ore Wood
18 Dome Rhymes With Home! Own 111 B Biodomes Stone
19 Fortress To Impress! Own 50 B Fortresses Stone
20 A Healthy People! Collect 364 JJJ Placebos Wood
21 Collecting Collector Collection! Own 842,953 Ozone Collectors Stone



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