Unlocks Ballista in the Siege Workshop.

Upgrade Table

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The research times listed below assume no research bonuses are active, such as those from technologies, alliance technologies, or VIP perks. While we cannot predict your research time, it will likely be less.
Level Requirements Costs Time Power
1 Cartography Level 3
Academy Level 21
Resource icon food 5.00M
Resource icon wood 5.00M
Resource icon stone 3.75M
Resource icon gold 5.00M
45d 211,770

Upgrade Rewards

Advanced Research — Research Ballista in the Academy (edit)
Level Reward
Resource icon food Food Resource icon wood Wood Resource icon stone Stone Resource icon gold Gold
1  ?  ?  ?  ?
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