Yes, you need both the Castle and Watchtower upgraded to level 25.However, in the case of the Hospital and resource production buildings, you only need 1 of each type at max level All of the buildings above need to be upgraded to level 25.(requires a Quarry but is already listed above)Īt minimum, you will need 16 Master’s Blueprints, which will cost 32,000 gems.Here are the building requirements for a level 25 Academy and unlocking Tier 5: So, what is the minimum number of Master’s Blueprints required to unlock Tier 5 research? However, the upgrade to Academy level 25 has a number of nested building requirements, with the majority of those buildings needing a Master’s Blueprint. In order to unlock Tier 5 research in Rise of Kingdoms you need a level 25 Academy.
