Build It Up! – The Holy Roman Empire

Build It Up! – The Holy Roman Empire blends city-building, resource management, strategic battles and sieges into a cohesive medieval simulation. Start as a small landowner with only a few settlers and endure your first winter. Gather resources, establish production chains, and trade to provide goods for your people. Step by step your village grows into a thriving city at the heart of the Holy Roman Empire, shaping its economy, culture, and power.

To sustain an army you need ample food, weapons, and a growing population. Expand by building specialized villages and cities to boost productivity and secure strategic resources. Fortify the realm with walls, towers, and fortresses to defend neighbors and trade routes. You can conquer towns with soldiers and siege engines or pursue diplomacy to reach goals without bloodshed. As your influence with the Church increases, you earn electors' votes and climb toward the title of Emperor.

Economy and Growth

Detailed Economic Simulation drives every moment: buildings rise from foundations to rooftops while workers harvest resources, refine materials, and transport goods across your realm. Create organic settlements, care for your people, and manage thriving cities that respond to demand, weather, and seasonal cycles. The economy rewards careful planning, smart trade, and efficient production chains that keep your population fed and prosperous.

Dynamic Fields and Landscape Design

Dynamic Fields let you design land with any number of points, adapting to terrain, roads, or buildings. You can shape fields, livestock enclosures, or even a cemetery, crafting landscapes that maximize space and efficiency. The system supports countless layouts as you grow your domain.

Materials, Color, and Customization

Choose from building materials like wood, stone, brick, thatch, and mortar, and apply color variations to shape your city’s character. Nearly every structure—houses, churches, walls, towers—can be customized, giving each settlement a distinct identity and style across the empire.

Seasons, War, and Siege

Seasonal changes bring new challenges: spring and summer build supplies, while autumn harvests and winter snows test provisioning and supply lines. Warfare features large-scale battles with varied unit types such as archers, swordsmen, and cavalry. Build and use formations and tactics to gain the upper hand. Fortify cities with walls and towers, erect fortresses to protect villages, and deploy siege engines to breach defenses and conquer fortified holds. The cycle of campaign, fortification, and reconquest creates a dynamic map where strategy matters as much as luck.

Developed as a passion project by a solo developer, Build It Up! – The Holy Roman Empire draws on 25 years of economic simulations and strategy games that shaped the creator as a gamer.