Build a place to belong.
Connected homes, steady food, and purposeful streets turn a camp into a thriving city.
A CITY BUILDER ACROSS TIME
One tiny hearth.
A whole
civilization.
Start with six settlers. Shape your islands, connect your people, and build your way from the Stone Age to 2050.
Windows · Version 2.0.1 · 111.6 MB
BUILD. EVOLVE. EXPLORE.HEARTH TO HORISON / BUILD YOUR CIVILIZATION
01 / THE GAME
Start with six.
Build for generations.
The city you build tomorrow begins with the people you care for today.
Hearth to Horison is a city-building game about growing the same civilization through history. Begin in 10,000 BCE with six people, a small stock of supplies, and a hearth that will remain at the heart of your city.
Lay roads, raise homes, assign workers, and turn shared knowledge into progress. Your first shelters evolve into neighborhoods, your boats reach new islands, and your streets eventually fill with the hovering vehicles of 2050.
Start small. Think generations ahead.
Let knowledge lead.
Produce ideas, complete landmarks, and guide your people through seven chapters of history.
Go beyond the shore.
Settle new islands by sea and air. In 2050, prepare an expedition to Ironwood Reach.
02 / THROUGH THE AGES
Seven eras.
One evolving civilization.
Your original hearth endures. Buildings and roads evolve around it. Choose an era to see what comes next.
10,000 BCE · THE FIRST SPARK
A hearth becomes a home.
Build shelter, secure food, and gather the materials your small community needs. The story circle turns shared experience into the first sparks of knowledge.
BUILD YOUR WORLDHide shelter · Forager garden · Timber camp · Stone quarry · Story circle
CHAPTER MILESTONES
- Population
- 16
- Ideas
- 60
- Active time
- 20 min
Plus the era’s required landmark buildings.
Economic speed and active time are different: 2× and 3× speed up the economy, while construction, journeys, and era residence use active play time.
03 / BEYOND THE SHORE
Your next chapter
is across the water.
Three civilian islands. One distant frontier. Every crossing opens room for a new chapter.
Firstlight
The original hearth. Your first six settlers. The island where your civilization takes root.
Your starting island
Amberwood
Golden forests and copper cliffs make an autumnal home for your growing overseas town.
Settle by sea
Frostpine
Snowy pines and glacial shores offer another island to connect, plan, and bring to life.
Build a local street networkDistance is part of the journey. Docks unlock in Medieval times, with first voyages taking about five active minutes. Airports arrive in the 1990s and need a connected airport at both ends. Leave room: each airport occupies 8 × 8 tiles.
04 / YOUR FIELD GUIDE
Your first city.
Let’s build it right.
Your first goal isn’t a skyline. It’s a connected, well-fed settlement with room to grow.
- 01
Meet your first six settlers.
Start in Newhaven on Firstlight. Follow Ember’s introduction and look over your wood, stone, food, and ideas. You can rename your city.
- 02
Gather, then lay your roads.
Use Gather supplies for an immediate bundle of wood, stone, and food. Extend paths from your existing settlement before placing buildings.
- 03
Make room—and keep it fed.
Place shelters beside connected roads and provide food production. Housing capacity starts working after construction finishes and the home has street access.
- 04
Give every worker a purpose.
Split your population between wood, stone, food, and ideas. Move workers toward whatever is holding you back, and reassess as new citizens arrive.
- 05
Turn knowledge into progress.
Add a story circle and complete your chapter’s landmarks. In the Stone Age, work toward 16 people, 60 ideas, and at least 20 active minutes.
- 06
Advance, then look overseas.
Meet every chapter requirement to enter the next era. In Medieval times, build a connected coastal dock and wait for settlers to complete their first crossing.
Wood
A foundation for construction. Assign workers and develop timber production to keep building.
Stone
Your other core building material. Increase stone workers when your next project needs more.
Food
Feeds your citizens and supports population growth. More homes alone won’t grow your city.
Ideas
The knowledge needed to advance. Learning buildings and assigned workers help you reach each milestone.
Roads first. Everything follows.
Buildings need a connected local street network. Drag to plan roads, rotate most entrances, and inspect connection status if a building isn’t working. Be careful when demolishing a link: it may disconnect an entire neighborhood.
Demolishing a building returns half of its paid construction materials. Construction takes active time—from 15 seconds for a hide shelter to five minutes for a regional airport.
Plan your city.
- Zoom
- Move between the overview and street-level detail using the game’s zoom controls.
- Road planning
- Drag to plan a stretch of connected road.
- Inspect a building
- Check its purpose, construction, and street connection.
- Simulation speed
- Choose 1×, 2×, or 3× for the economy. Active-time requirements do not accelerate.
- Admin tools
- Left Ctrl + A opens the panel for era jumps, supplies, instant construction, and mission shortcuts.
05 / OPERATION FAR HORIZON
Beyond the horizon,
Ironwood awaits.
Spend 10 active minutes in 2050 to unlock your expedition to a frontier larger than the three civilian islands combined. Recruit up to 12 units, take the five-minute flight, and lead them into the fog of war.
Ranger squadsAssault dronesMedic teams
THE THREE STRONGHOLDS
- 01Western Watch
- 02Highland Redoubt
- 03Ironwood Citadel
Capture all three to open Ironwood Reach for city building.
SELECTSelect a unit or drag a selection box
ADD TO SELECTIONShift + select
MOVE / ATTACKRight-click your destination or target
HEARTH TOHORISONSMALL BEGINNINGS. LIMITLESS HORIZONS.
06 / YOUR NEXT CHAPTER
Make history.
Make it yours.
Get Hearth to Horison for Windows and build a world of your own.
Windows appVersion 2.0.1
Download appAfter the download finishes, open Hearth-to-Horizon-Setup-2.0.1.exe from Chrome Downloads (Ctrl + J), then follow setup.
Downloading does not install the app automatically.
Windows installation has not been tested here.
A FEW THINGS TO KNOW
Before you
set out.
What is Hearth to Horison?
Hearth to Horison is a city-building game that follows one civilization from six settlers in the Stone Age to a futuristic city in 2050. Build across islands, advance through seven eras, and lead the Ironwood expedition.
Why won’t my population grow?
Check that you have enough food, completed homes, and unused housing capacity connected to the local street network. An overseas town needs its first settlers to finish their voyage before it can grow locally.
Why can’t I advance to the next era?
Each chapter requires its population milestone, enough ideas, the required landmark buildings, and at least 20 real minutes of active play in that era. All requirements must be met. Raising the simulation speed does not shorten the active-time requirement.
Does the city keep running when I leave?
Your city is designed to save between sessions, but leaving or pausing does not run down construction, travel, or era residence timers. Keep a downloadable backup as another way to restore your city.
Can I keep building after 2050?
Yes. Completing the final chapter does not end your city. Keep expanding your islands, redesigning neighborhoods, and developing conquered Ironwood. The expedition also has a practice replay that preserves your established city.
How do I install the Windows game?
Choose Download app. After the download finishes, open Hearth-to-Horizon-Setup-2.0.1.exe from Chrome Downloads (Ctrl+J), then follow setup. Downloading does not install the app automatically.
How does the Windows version run?
Version 2.0.1 runs in its own desktop app window with a bundled browser engine. Your worlds are saved locally on your PC, and the app saves your progress when you close it.
Can I restore a city backup?
Yes. Choose Restore backup in the app and select a compatible city JSON file. Restoring replaces the selected world, so create a new world first if you want to keep your existing city.