Grand Century
Grand strategy across the long century. Choose a start from 1700 to 1945, take a nation, and carry it through industry, reform, and war on a world that keeps moving without you.
Playable, still in development. The build is live and free while it is being built. Systems and balance change often, and saves from older builds may not survive a major update. The changelog tracks what changed.
A world that lives without you
Population groups grow, migrate, and promote between strata. Factories boom and go bust. Prices move on a shared world market. AI nations pursue their own wars and their own industrialisation. You nudge a system rather than micromanage a spreadsheet.
War is the payoff
Mobilising population into armies, fronts that push and break, war goals, occupation, peace deals, the great-power pecking order, and the colonial land grab. Every other system feeds it: the economy funds it, population mans it, politics gates what you can enact, diplomacy sets it up.
Legible depth
Interlocking systems stay understandable through tooltips that trace a number back to the inputs that produced it. If a budget line moves, you can find out why.
Real time with pause
Five speeds, a daily tick, and heavier systems resolving on coarser cadences to stay cheap in a browser tab. Pause whenever you want to read a panel, plan a war, or trace a market.
Seven starting dates
Start in 1700, 1776, 1815, 1830, 1914, 1936, or 1945. Each start is built from reviewed historical sources for that exact date: borders, nations, and starting politics, with the game's own economic calibration on top. 1830 is the original campaign and the most polished. 1914, 1936, and 1945 use a full 548-province map. 1776 and 1815 are still marked as development starts where the historical record has gaps, and the game says so instead of inventing who owned what.
Common questions
What does it cost?
Nothing while it is in active development. Play it in the browser at /games/grand-century/.
Is it multiplayer?
Yes. The game has a single-player campaign and private or open multiplayer lobbies for two to eight players, in competitive or co-op modes. AI nations run on the same rules and the same world market.
How historically accurate is it?
The starting map, nations, and politics are authored from historical sources, then tuned for play. It is a game, not a simulation of the historical record. The design notes and changelog explain the major choices.
What platforms are supported?
Any modern browser, on a computer or a phone. A native phone app is in development.
Can I read the source?
Yes. The source is on GitHub under the PolyForm Noncommercial licence. You can read, learn from, modify, and run it noncommercially.