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.

A third-person strategy RPG where you fight, build, trade and command Rome's advance through a living Britannia that continues with or without you.

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.

I

Persistent people

Workers keep their professions and gain experience over time. Who lives, works, recovers or dies can change what a settlement is able to support.

II

A physical economy

Resources are gathered, crafted, consumed and moved by real caravans. Protect a friendly supply line - or raid an enemy route before attacking its settlement.

III

Conquest leaves a mark

Ownership, population, production and military pressure are connected. The campaign is built to leave more than a colour change 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.

Top-down render of the playable landscape of Britain and Ireland
Same terrain / two viewsDrag to move between the playable world and its campaign map.

Steam Next Fest · October 19, 2026

Take your first steps into Britannia.

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

Demo arrives October 19, 2026
Fight on foot

Enter the invasion from a third-person perspective.

Read the world

See people, resources and settlements acting as connected systems.

Shape what follows

Experience the foundations of a campaign built around lasting consequences.

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
Work-in-progress Roman settlement beside a lake, with buildings still under constructionWork in progress / Visuals subject to change

Field report / Current build

The foundations are built. Now the world gets sharper.

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

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 world you want to see, wishlisting it on Steam is the most direct way to support its development right now.

Steam page coming soon

The final Steam link will replace this launch marker as soon as the store page is public.

Steam page coming soon