The Duelist is a game in the mixed turn-based RPG genre. The action takes place in medieval Europe of the XIV-XVI centuries. The game tells the story of a former mercenary embroiled in a confrontation between the Coalition of City-States and the Papal See. The player will go from free mercenary to commander of his condottieri squad and play a prominent role in the fast-paced war. The game feature is the ability to play in two combat modes - the 1vs1 duel mode and the squad mode. Movement around the map is tied to the base camp to organize the supply of the detachment on a long campaign. The player can send a party of up to 5 characters to explore the area around the camp while the others gather resources or repair weapons.
There are 7 main characters. Impostor (in the center) is the most mysterious character and not much information is revealed about him. The past and present of the squad members are combined in the central plot and reveal both the characters of the heroes and the surrounding country in which each of them tried to find a place for themselves.