Squad 4

20 research items: cost, time and requirements per level.

20 research items in tree order. Per level: power, cost, base research time (without speed bonuses) and requirement; the total of all levels below.

Damage Bonus (VS Monsters)

Level	Power	Food	Iron	Coin	Time	Requirements
1	600	45,600	45,600	136,700	41 min	Tech Center Lv. 8
2	1,400	72,900	72,900	218,700	53 min	Tech Center Lv. 9
3	2,400	116,600	116,600	349,900	1 h 8 min	Tech Center Lv. 10
4	3,400	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11
5	5,000	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
Total		725,000	725,000	2,175,000	6 h 57 min

Damage Reduction (VS Monsters)

Level	Power	Food	Iron	Coin	Time	Requirements
1	600	45,600	45,600	136,700	41 min	Tech Center Lv. 8
2	1,400	72,900	72,900	218,700	53 min	Tech Center Lv. 9
3	2,400	116,600	116,600	349,900	1 h 8 min	Tech Center Lv. 10
4	3,400	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11
5	5,000	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
Total		725,000	725,000	2,175,000	6 h 57 min

Squad ATK

Level	Power	Food	Iron	Coin	Time	Requirements
1	800	72,900	72,900	218,700	53 min	Tech Center Lv. 9
2	1,800	116,600	116,600	349,900	1 h 8 min	Tech Center Lv. 10
3	2,800	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11
4	4,400	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
5	6,500	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
Total		1,274,300	1,274,300	3,822,900	10 h 5 min

Squad DEF

Level	Power	Food	Iron	Coin	Time	Requirements
1	800	72,900	72,900	218,700	53 min	Tech Center Lv. 9
2	1,800	116,600	116,600	349,900	1 h 8 min	Tech Center Lv. 10
3	2,800	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11
4	4,400	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
5	6,500	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
Total		1,274,300	1,274,300	3,822,900	10 h 5 min

Squad HP

Level	Power	Food	Iron	Coin	Time	Requirements
1	800	72,900	72,900	218,700	53 min	Tech Center Lv. 9, Squad ATK Lv. 1, Squad DEF Lv. 1
2	1,800	116,600	116,600	349,900	1 h 8 min	Tech Center Lv. 10
3	2,800	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11
4	4,400	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
5	6,500	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
Total		1,274,300	1,274,300	3,822,900	10 h 5 min

Resource Reaper

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,000	116,600	116,600	349,900	1 h 8 min	Tech Center Lv. 10, Squad HP Lv. 2
2	2,000	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11
3	3,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
4	5,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
5	7,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
Total		1,855,800	1,855,800	5,567,300	16 h 27 min

Squad Load Capacity

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,000	116,600	116,600	349,900	1 h 8 min	Tech Center Lv. 10, Squad HP Lv. 2
2	2,000	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11
3	3,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
4	5,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
5	7,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
Total		1,855,800	1,855,800	5,567,300	16 h 27 min

March Speed (VS Monsters)

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,000	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11, Resource Reaper Lv. 2, Squad Load Capacity Lv. 2
2	2,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
3	4,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
4	6,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
5	9,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
Total		2,655,300	2,655,300	7,965,700	1 d 5 h 49 min

Battle March Speed

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,000	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11, Resource Reaper Lv. 2, Squad Load Capacity Lv. 2
2	2,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
3	4,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
4	6,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
5	9,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
Total		2,655,300	2,655,300	7,965,700	1 d 5 h 49 min

Resource March Speed

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,000	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11, Resource Reaper Lv. 2, Squad Load Capacity Lv. 2
2	2,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
3	4,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
4	6,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
5	9,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
Total		2,655,300	2,655,300	7,965,700	1 d 5 h 49 min

Universal March Speed

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,000	140,000	140,000	419,900	1 h 42 min	Tech Center Lv. 11, Battle March Speed Lv. 1, Resource March Speed Lv. 1
2	2,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12
3	4,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
4	6,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
5	9,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
Total		2,655,300	2,655,300	7,965,700	1 d 5 h 49 min

Siege ATK

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12, Universal March Speed Lv. 2
2	3,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
3	5,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
4	8,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
5	11,500	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
Total		3,797,800	3,797,800	11,393,400	2 d 7 h 39 min

Siege DEF

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12, Siege ATK Lv. 1
2	3,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
3	5,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
4	8,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
5	11,500	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
Total		3,797,800	3,797,800	11,393,400	2 d 7 h 39 min

Siege HP

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12, Siege DEF Lv. 1
2	3,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
3	5,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
4	8,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
5	11,500	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
Total		3,797,800	3,797,800	11,393,400	2 d 7 h 39 min

Guard ATK

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12, Universal March Speed Lv. 2
2	3,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
3	5,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
4	8,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
5	11,500	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
Total		3,797,800	3,797,800	11,393,400	2 d 7 h 39 min

Guard DEF

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12, Guard ATK Lv. 1
2	3,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
3	5,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
4	8,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
5	11,500	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
Total		3,797,800	3,797,800	11,393,400	2 d 7 h 39 min

Guard HP

Level	Power	Food	Iron	Coin	Time	Requirements
1	1,600	349,900	349,900	1,049,800	2 h 33 min	Tech Center Lv. 12, Guard DEF Lv. 1
2	3,700	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13
3	5,900	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
4	8,500	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
5	11,500	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
Total		3,797,800	3,797,800	11,393,400	2 d 7 h 39 min

Phys. DMG

Level	Power	Food	Iron	Coin	Time	Requirements
1	2,100	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13, Siege HP Lv. 2, Guard HP Lv. 2
2	4,300	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
3	6,900	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
4	9,900	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
5	13,900	2,282,900	2,282,900	6,848,700	2 d 1 h 33 min	Tech Center Lv. 17
Total		5,730,800	5,730,800	17,192,300	4 d 6 h 39 min

Energy DMG

Level	Power	Food	Iron	Coin	Time	Requirements
1	2,100	594,900	594,900	1,784,600	3 h 49 min	Tech Center Lv. 13, Siege HP Lv. 2, Guard HP Lv. 2
2	4,300	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14
3	6,900	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
4	9,900	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
5	13,900	2,282,900	2,282,900	6,848,700	2 d 1 h 33 min	Tech Center Lv. 17
Total		5,730,800	5,730,800	17,192,300	4 d 6 h 39 min

Fatal Strike

Level	Power	Food	Iron	Coin	Time	Requirements
1	2,200	654,400	654,400	1,963,100	7 h 15 min	Tech Center Lv. 14, DMG Lv. 2, Energy DMG Lv. 2
2	4,800	916,100	916,100	2,748,300	14 h 30 min	Tech Center Lv. 15
3	7,800	1,282,500	1,282,500	3,847,600	1 d 3 h 32 min	Tech Center Lv. 16
4	11,800	2,282,900	2,282,900	6,848,700	2 d 1 h 33 min	Tech Center Lv. 17
5	16,400	2,967,800	2,967,800	8,903,300	3 d 12 h 14 min	Tech Center Lv. 18
Total		8,103,700	8,103,700	24,311,000	7 d 15 h 4 min

Where these figures come from

From player sources and submitted screenshots.

Updated: 2026-10-02