Painted key art showing a Roman commander carrying a red standard before an advancing army

Official illustrated key art — not in-game footage

AD 43 · Single-player · PC

Invasion of Britannia

Rome has come to Britain.

Lead Rome's invasion of Britain in a third-person strategy RPG. Fight, build, trade and conquer in a living world that keeps moving with or without you.

Wishlist on Steam Explore the living world

Solo-developed and self-funded for four years by Zeno Ferenczi

01 / Current build~10 hours

in the current developer build

02 / SystemsCore playable

integration and polish underway

03 / DevelopmentFour years

solo-developed and self-funded

Single-player by design

Britannia does not wait for you.

Britannia is not a stage waiting for the player. Its workers gather, its craftspeople produce, its caravans travel and its factions pursue their own campaigns.

You experience that strategy from the ground: fighting in third person, taking your place in the invasion and deciding which settlements, people and supply lines to defend, command or disrupt.

The living world

Every loss travels through the system.

People, resources and territory are connected. A decision made in one settlement can change the strength of another days later.

Persistent people

Workers keep their professions and experience. Losing a skilled craftsperson or veteran changes what a settlement can produce and defend.

A physical economy

Food, materials and equipment are produced locally and carried between settlements by physical caravans. Protect a supply line—or cut one before an attack.

III

Conquest leaves a mark

Conquest changes ownership, population, production and military strength—not just a colour on the map.

One world, two perspectives

The map is the world.

The campaign map is built from the same landscape the player travels through. Its terrain is transformed into a restrained Roman military map, while settlements, armies and campaign information are added dynamically as Britannia changes.

The terrain overview compresses the whole landmass into one frame; the roads, forests and settlements shown elsewhere resolve at ground level as you travel.

Long-range terrain overview of the playable landscape of Britain and Ireland — One landscape / two scalesDrag between the terrain overview and its in-game campaign map.

One landscape / two scalesDrag between the terrain overview and its in-game campaign map.

Steam Next Fest · October 19, 2026

Take your first steps into Britannia.

The free demo is planned for October 19, 2026 during Steam Next Fest, offering a first look at the combat, settlement and living-world foundations.

Wishlist on Steam Demo planned for October 19, 2026

Fight on foot

Enter the invasion from a third-person perspective.

Step inside

Explore settlement streets and working interiors.

See the systems connect

Follow how people, supplies and control affect the wider settlement.

One settlement, two scales

Strategy you can walk through.

Settlements are simulated at campaign scale, but the player inhabits them from an over-the-shoulder perspective. What changes in the economy becomes visible in the street.

01 Gather02 Build03 Trade04 Conquer

Captured from a work-in-progress build. Visuals and interface are still being refined.

Work-in-progress aerial view of a dense Roman settlement surrounded by woodland and coast — Campaign scale / the current settlement build

Roman soldier overlooking a settlement from a timber balcony in heavy rain — Player view / inside the settlement

Inside the current build

A world you can walk into.

Move from streets and markets into the buildings around them. Settlement interiors, campaign information, soldiers and local trade all belong to the same playable world.

Captured from a work-in-progress build. Visuals and interface are still being refined.

Roman player character standing inside a furnished settlement building — Interior spacesStep inside the settlement

In-game campaign map showing settlement markers across explored Britannia — Campaign viewRead the wider world

Player character meeting Roman soldiers beside a settlement building — Roman presenceMeet the people behind the campaign

Player character at a guarded market stall within a Roman settlement — Local tradeGather, equip and supply

From alpha to demo

Four years of visible progress.

The core simulation is playable and the current developer build contains roughly ten hours of gameplay. Development is focused on integration, performance, presentation, balance and continued stability testing.

Format: Single-player PC game
Perspective: Third-person strategy RPG
Setting: Roman invasion of Britain, AD 43
Status: Core simulation playable; active integration and polish

Current demo-build aerial view of a dense Roman settlement — Earlier alpha build / current demo buildDrag to see how the settlement has changed during development.

Earlier alpha-build aerial view of a smaller settlement — Earlier alpha build / current demo buildDrag to see how the settlement has changed during development.

The developer

Four years.
One developer.

I'm Zeno Ferenczi, the solo developer behind Invasion of Britannia.

I have independently funded and built the project for four years, personally writing nearly all of its code. The goal has always been an ambitious single-player world where the player is part of a larger system, not the switch that turns it on.

Hearth & History Games is the home for that work: historically grounded games built around the people, economies and decisions that make a world feel alive.

Zeno Ferenczi

Support the campaign

Help bring Britannia to life.

If this is the kind of single-player game you want to see, wishlisting it is the most useful way to support one developer building it right now.

Wishlist on Steam

Steam is the official home for the game. The free demo is planned for October 19, 2026 during Steam Next Fest.