Wallenstein's Contracts

"Mercenaries are free."

- In-game description

Wallenstein's Contracts is a technology in Age of Empires III unique to the Germans. It can be researched at the Church from the Fortress Age, but requires the Treaty of Westphalia Home City Card to be sent beforehand.

Once researched, the technology removes the coin cost of Home City mercenary shipments, with the exception of TEAM Hire Hessians and TEAM 10 Cree Allies. This allows a German player to liberally ship mercenary armies to overwhelm their opponents, and saves them up to ( if the technology's cost is also considered).

Note that despite what the description states, the technology does not affect mercenaries' train cost; those trained in the Saloon still cost their to be trained.