Frontier Fortress - Tower Defense

Released Apr 2022

Frontier Fortress is medieval-themed tower defense game. You are the leader of your nation. In the harsh medieval age you have to defend your land against foreign invaders. Fortify your frontier with defense structures and let none of them pass through your fortress.

75% positive · 4 reviews

Pending

Released · Awaiting evaluation

Pending

Released · Awaiting evaluation

Where to buy

Steam Updated 9 Oct 2026 $4.99

Can't confirm — worth a look

We couldn't confirm these stores carry this game.

Green Man Gaming Steam key Search IndieGala Steam key Search

Prices in USD, as listed by each store.

Buying through an affiliate store helps support the site

Media

Details

Developer

Imperial Interactive

Publisher

Imperial Interactive

Achievements

Platform

Windows

Controller

—

Steam Deck

Not rated

Players

Single-player

Tower Defense Medieval 2.5D Isometric Strategy Touch-Friendly Real Time Tactics RTS Military War Resource Management 2D Tactical Old School Retro

About this game

Frontier Fortress

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.

Campaign Mode

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.

Campaign features:

* 30 total scenarios

* 3 campaigns divided into 2 parts, each part contains 5 scenarios

* 3 player nations (The Empire, The Republic, The Kingdom)

* 6 enemy factions (The Nomads, The Raiders, The Knights, The Horde, The Rebels, The Islanders)

* 6 map types (Valley, Coast, Tundra, Steppe, Forest, Town)

* 20 types of building/tower with varied characteristics and abilities, each unlocked after finishing certain campaign scenario

* 25 types of enemy unit with varied characteristics and abilities, each enemy faction has unique units

* More challenging "expert mode" campaign, unlocked after completing all scenarios perfectly