Full list of all 18 Battlewagon achievements worth 200 gamerscore. It takes around 3-4 hours to unlock all of the achievements on Windows Phone.
Get gold in every castle
Complete the capitol castle in winter
Complete all wagon-run levels
Complete all wizard challenges
Complete all peasant challenges
Complete all the Duke challenges
Unlock all skeletal upgrades
Shoot an enemy with the trumpet cannon
Complete the capitol castle in autumn
Get gold in any capitol castle on first attempt
Complete all Jester challenges
Complete a castle with full health
Unlock Romeo armour
Unlock the umbrella ram
Complete a castle with the jewelled armour
Complete the capitol castle in summer
Complete the capitol castle in spring
Break gold, silver and bronze doors in a single castle