Ding Dong Un is a rare Researcher that boosts the soldiers industry.

He can be unlocked at  Rank 70.

Ding Dong Un starts out multiplying soldiers by 9, but upgrading the researcher will only double the industry's power (x18, not x81).

Ding Dong Un Boost Science Cost Cards Required
Level 1 X9 free 1
Level 2 X18 100 2
Level 3 X36 200 5
Level 4 X72 400 10
Level 5 X144 1,000 20
Level 6 X288 2,000 50
Level 7 X576 4,000 100
Level 8 X1152 8,000 200
Level 9 X2304 20,000 400
Level 10 X4608 50,000 800
Level 11 X9216 100,000 1,000
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