From the Steam Store page:
Command an army, customize battlefields, and challenge your friends, in this richly detailed return to retro turn-based combat!

When war breaks out in the Kingdom of Cherrystone, the young Queen Mercia must flee her home. Pursued by her foes, the only way to save her kingdom is to travel to new lands in search of allies. But who will she meet along the way, and what sinister challenges will she face?