Frontier Fortress is medieval-themed tower defense game. It combines tower defense with classic RTS vibes. The game is displayed in 2.5D axonometric view with 20x20 tiles grid-based map.
In campaign mode you play as the leader of a nation trying to defend your land against enemy invasion. There are 3 campaigns representing 3 nations story, each campaign divided into 2 parts, each part with 5 scenarios. A campaign tells story of a nation struggling against the invasion by enemy faction. Every campaign has unique nation, enemy faction, and map type.