Hero Academy

The Hero Academy (abbreviated HA) is an advanced building that can train 1-4 star heroes (in some respects faster, cheaper or better than a Training Camp) but also Trainer Heroes, 1-3* troops, and retrain 4* troops and 5* heroes. It can be converted after reaching Stronghold final level 25 (so upgrading the HA, and related necessary storage, largely replaces it as the main building to develop in the base as the player progresses).

The Hero Academy has 10 levels, and two simultaneous actions are allowed from level 2 (similar to Alchemy Lab). The research of a new training counts as one such use, however it is not possible to combine two researches.

Hero Academy was first announced in December 2018 but added only in Version 30 in June 2020.

Upgrade Costs

Level	Action	Iron	Time	Research Cost	Res. Time
1	Train 1 star heroes	2610k	10s	514k Food	1h
2	Train 1 star troops	2629k	1d 8h	716k Food	1d
3	Train 2 star heroes	2644k	2d	978k Food	1h
4	Train 2 star troops	2659k	2d 22h	1277k Food	1d
5	Train 3 star heroes	2671k	4d 2h	1459k Food	1d
6	Train 3 star troops	2686k	5d 13h	1923k Food	1d
7	Train trainer heroes	2700k	7d 9h	2225k Food	1d
8	Train 4 star heroes	2715k	9d 6h	2927k Food	1d
9	Retrain 4 star troops	2729k	11d	3287k Food	7d
10	Retrain 5 star heroes	2748k	12d 13h	3311k Food	14d

Note the steep growth of Food research costs: In particular, Level 10 requires fully leveled storage buildings – three Advanced Food Storages at Lvl 10 (873k capacity) and the remaining Food Storage at Lvl 20 (689k; the sum is just 3308k but there is the 10k starting storage capacity of the Stronghold). Level 9 is only 24k cheaper, meaning there can be just one AFS9 (853k).

Usage

Lvl	Training	Food	Iron	Rec- ruits	Other materials	Time
1	1* heroes	5k	–	1	2x Practice Sword, 2x Training Manual	1m
2	1* troops (80xp)	–	50.8k	50	3x Dagger	9h
3	2* heroes	11k	–	8	3x Strong Rope	1m
4	2* troops (180xp)	-	103k	100	5x Arcane Scripts	21h
5	3* heroes	100k	–	30	1x Battle Manual, 1x Chainmail Shirt	9h
6	3* troops (400xp)	–	151k	150	5x Tall Boots, 5x Scabbard	2d 12h
7	Trainer heroes (various)	45k	–	30	5x Wooden Shield, 5x Leather Armor, 5x Sharpening Stone	9h
8	4* heroes	200k	–	100	3x Battle Manual, 3x Tall Boots, 3x Chainmail Shirt, 3x Scabbard	2d 12h
9	Retrain 4* troops	–	1203k	200	(1x 4* Troop)	7d
10	Retrain 5* heroes	1288k	–	300	(1x 5* Hero)	7d

Notes:

Level 5 trains not only 24 standard Season 1 3 Star Heroes but (since Version 44, Dec 2021) five older RARE heroes of the retired Challenge Events; apparently all with equal probability.

Similarly, Level 8 beside 22 classic 4 Star Heroes produces 8 from Challenge events.

Level 7 produces 1 to 4-star trainer heroes. The chances of each rarity from Beta at 501 tries were 52.9 % / 37.7 % / 8.8 % / 0.6 %. This indicates a yield of 35.85 xp per 1k of food consumed within a timeframe of 179 xp per hour of production. Later anecdotical data of several dozen runs suggest better chance for 4* about 5 %.

Level 10 gives Season 1 5-star heroes at 95% chance. At 5% chance, it can give any non-Classic heroes, including past HOTMs that are, at minimum, 12 months old.

The complete catalog of heroes that can obtained from HA5, HA8, and HA10 is at Hero Academy/Training.

Forum Links

• "Hero Academy" Tag
  • "Hero Academy" Master Thread