Tribe Attack IV

Base reference costs and prerequisites. Supported through level 5; each row shows an explicit upgrade transition.

Upgrade costs

Tribe Attack IV base upgrade costs
From → To	Coins	Base work
0 → 1	100,069,500	20d 20h 7m
1 → 2	100,069,500	20d 20h 7m
2 → 3	110,076,500	22d 22h 8m
3 → 4	110,076,500	22d 22h 8m
4 → 5	121,084,100	25d 5h 9m

Requirements by target level

Level 1

Tribe HP IV level 1
(Scholar Tower I level 28 OR Scholar Tower II level 28)

Level 2

Tribe HP IV level 2
(Scholar Tower I level 28 OR Scholar Tower II level 28)

Level 3

Tribe HP IV level 3
(Scholar Tower I level 29 OR Scholar Tower II level 29)

Level 4

Tribe HP IV level 4
(Scholar Tower I level 29 OR Scholar Tower II level 29)

Level 5

Tribe HP IV level 5
(Scholar Tower I level 30 OR Scholar Tower II level 30)

Reference research rows describe the level being reached. Prerequisites are expanded by the planner, including shared requirements once and all required building gates.

Reference snapshot: 24 October 2026. Community table agreement does not mean every value was independently verified in-game. View sources and uncertainty.