Reference
HQ Prerequisites
What you need to upgrade before you can push your Headquarters to the next level. Jump to your current HQ to see the next upgrade requirement.
10
HQ Level 10
Tech Center 9 · Hospital Lv. 9
11
HQ Level 11
Tech Center 10 · Wall Lv. 10
12
HQ Level 12
Tech Center 11 · Barracks Lv. 11
13
HQ Level 13
Tech Center 12 · Tank Center Lv. 12
14
HQ Level 14
Tech Center 13 · Drill Ground Lv. 13
15
HQ Level 15
Tech Center 14 · Wall Lv. 14
16
HQ Level 16
Tech Center 15 · Alliance Center Lv. 15
17
HQ Level 17
Tech Center 16 · Tank Center Lv. 16
18
HQ Level 18
Tech Center 17 · Hospital Lv. 17
19
HQ Level 19
Tech Center 18 · Wall Lv. 18
20
HQ Level 20
Tech Center 19 · Barracks Lv. 19
21
HQ Level 21
Tech Center 20 · Tank Center Lv. 20
22
HQ Level 22
Tech Center 21 · Drill Ground Lv. 21
23
HQ Level 23
Tech Center 22 · Wall Lv. 22
24
HQ Level 24
Tech Center 23 · Alliance Center Lv. 23
25
HQ Level 25
Tech Center 24 · Tank Center Lv. 24
26
HQ Level 26
Tech Center 25 · Hospital Lv. 25
27
HQ Level 27
Tech Center 26 · Wall Lv. 26
28
HQ Level 28
Tech Center 27 · Barracks Lv. 27
29
HQ Level 29
Tech Center 28 · Tank Center Lv. 28
30
HQ Level 30
Tech Center 29 · Drill Ground Lv. 29
Reflects a recent game version — building requirements may shift after game updates.