Upgrade the Barracks to train more troops at once by increasing the Troop Queue capacity, which is how many Troops can be trained at a single time. Multiple Barracks can be built for increased effects, and also add slight Troop, Strategic Troop and Wild Troop defence buffs which increase with each Barrack. In order to upgrade a Barracks, a Quarry is required to be one level above the Barrack. Barrack upgrades are required to upgrade Hospitals and the Watchtower. (See chart)
Troops consume Food for "upkeep". The more troops, than the higher the demand for food will become. Having a large army takes practice and a lot of consideration. Going into the negative will mean more food is being consumed than created, making it hard to upgrade buildings later. Some players opt to have lots of farms, items on their Hero and set their Hero Skill Points to food production in order to create a massive army.
You can view details about your troops upkeep in the barracks, by scrolling down and tapping "More Information"
|5||1% Troop, Strategic Troop and Wild Troop Defence.|
|10||2% Troop, Strategic Troop and Wild Troop Defence.|
|15||3% Troop, Strategic Troop and Wild Troop Defence.|
|20||4% Troop, Strategic Troop and Wild Troop Defence.|
|21||10% Troop, Strategic Troop and Wild Troop Defence.|
|Level||Time||Wood||Stone||Food||Ore||Train Capacity||Hero XP||Power|