Age of Empires II: The Age of Kings/Teutons

With the Goths and Vikings, the Teutons are one of the civilizations belonging to the Eastern and Northern European culture. Their major advantage is their economy, defensive technologies, and their extremely strong unique unit. Their towers and town centers have attack bonus, their monks heal your units faster, and their farms cost 33% less. Their unique unit is the Teutonic Knight, arguably the strongest infantry unit. They have double the HP and attack of most other units, and cost almost twice as much too. They are extremely slow but they are almost invulnerable to most attack.

Guide for Using the Teutons
The Teutons have Murder Holes for free, so it is best to try considering to protect your base by castles and defensive towers, and build walls after.