Heroes
Follow the Heroes research tree. Select a research to see its levels, costs and research time.
28 research · 140 levels
Infantry Firepower IMax level: 5
Infantry ATK IMax level: 5
Infantry DEF IMax level: 5
Infantry HP IMax level: 5
Tank Firepower IMax level: 5
Tank ATK IMax level: 5
Tank DEF IMax level: 5
Tank HP IMax level: 5
Aircraft Firepower IMax level: 5
Aircraft ATK IMax level: 5
Aircraft DEF IMax level: 5
Aircraft HP IMax level: 5- Infantry Firepower IIMax level: 5
- Infantry ATK IIMax level: 5
- Infantry DEF IIMax level: 5
- Infantry HP IIMax level: 5
- Tank Firepower IIMax level: 5
- Tank ATK IIMax level: 5
- Tank DEF IIMax level: 5
- Tank HP IIMax level: 5
- Aircraft Firepower IIMax level: 5
- Aircraft ATK IIMax level: 5
- Aircraft DEF IIMax level: 5
- Aircraft HP IIMax level: 5
Firepower BoostMax level: 5
ATK BoostMax level: 5
DEF BoostMax level: 5
HP BoostMax level: 5
Strengthening every hero type
Heroes research raises Firepower, ATK, DEF and HP separately for Infantry, Tank and Aircraft Heroes, then finishes with four Boost research that apply to all of them. It is a good fit if your squads mix hero types, because each tier improves all three types in parallel.
Heroes compared
The branch has 28 research, all with 5 levels, for 140 levels in total. It starts at Tech Center level 5 and its final research needs level 30.
It is one of the heaviest branches in the game: about 3,344 days at base speed and roughly 6.7 billion Food, 6.7 billion Iron and 20 billion Coins. The four final Boosts make up a large share of that; HP Boost alone takes about 292 days.