FREE BROWSER STRATEGY · VERSION 3.0

TERRASTATE

One world. Hundreds of AI nations. One prize to hold.

Build an economy, raise an army, find allies and take the Nexus before anyone else can hold it. Turn by turn, at your pace. Free, in your browser, no account and no download.

Season 0: the live world opens at 100 commanders · 300 AI nations · 25 theaters · Quick, Standard or Epic seasons · phone and desktop
VERSION 3.0 · UPDATE 3 · 1 OCTOBER 2026
Smarter rivals. No cheating.
Every rival alliance now has a war council: it picks a target, signs pacts, declares war, scouts, strikes together and defends its members. And the computer pays exactly what you pay.
Also new: design your own flag, and in the live world a stand-in runs your nation while you are away.
See what is new in 3.0 →
CHOOSE YOUR ERA

One game, two worlds

The same rules and the same fight for one central prize. Different age, different armies, different feel. Your save for each game is kept separately in your browser.

MODERN · 2026

TERRASTATE

Terrastate Home screen on a phone
The world
An alternative 2026: 25 theaters from Europe to Oceania
Win
Take the Nexus, build the Earth Command Center, hold it 12 ticks. Or hold it the longest in the Last Battle
Money
Euro, food, energy, steel, fuel, electronics
Armies
Infantry, battle tanks, strike fighters, drones, Titan mechs
Look
Night-blue command centre, clean and cool
PLAY TERRASTATE ▶
ANTIQUITY · ANNO I

ROMATERRA

Romaterra Home screen on a phone
The world
Rome against the rest: from Hesperia to Serica, Aethiopia to Thule
Win
Take Roma, raise the Imperial Palace, hold it 48 ticks. Or hold it the longest in the Last Battle
Money
Denarii, grain, timber, iron, livestock, bronze
Armies
Legionaries, cataphracts, ballistae, war elephants
Look
Marble, bronze and gold, with Roman lettering
PLAY ROMATERRA ▶
IN ACTION

Same fight, two eras

Real screens from the game, taken in the last ticks of a season when the whole world marches on the prize.

TERRASTATE
Terrastate screen
ROMATERRA
Romaterra screen

The Last Battle. In the final ticks the whole world marches on the prize. The panel shows who holds it, who is marching on it, every battle, and the hold race: hold it the longest and the season is yours.

Battle report on a laptop
On a laptop: the battle report, with the next move right under it.
HOW IT PLAYS

One turn, three moves

1
READ
Who lands, and when

Home shows what is in the air: incoming in red, help in green, your own strikes in blue. One next action on top.

2
ORDER
Build, recruit, scout, strike

Each order costs command points. Scout before you sail: a rival's strength is unknown until your scan lands.

3
END TURN
The world answers

Every nation moves at once. Battles resolve, markets shift, alliances call for help. Or let it run at 1x, 5x or 20x.

WHAT YOU GET

A world that answers back

NEIGHBOURS
Nations with a temperament

Some raid, some hold, some are rich and thin. They trade, ally, betray and remember a strike.

COMBAT
Battles in phases

Air, recon and ground, unit counters and doctrines. A smaller combined force beats a bigger blind one.

ALLIANCES
Friends who answer

Found a bloc, share intel, call for defence and plan joint strikes. An alliance win is shared.

ECONOMY
A market that tells the truth

The price you read is the price you pay. Buy into a hot market and it costs you.

CAMPAIGN
Six scenarios

Learn the game one clear goal at a time, from your first regions to a season on Warlord.

YOUR TEMPO
Turn-based, or let it run

Quick, Standard or Epic. Recruit, Veteran or Warlord. Save slots, and it works offline.

QUESTIONS

Frequently asked questions

What is Terrastate?

Terrastate is a free grand strategy game in the style of Planetarion that runs in your web browser. You lead one nation against 300 AI nations on a world map of 25 theaters: build an economy, research, raise an army, join or found an alliance and fight for the Nexus, the one region that decides the season.

Is Terrastate free?

Yes. Terrastate and Romaterra are completely free. There are no payments, no ads, no account and no download. It is a non-commercial hobby project by Wim Kamphorst from the Netherlands.

Do I need to download or install anything?

No. Open playterrastate.nl/play.html in any modern browser and you are playing. You can install it as an app from the browser if you like, and it keeps working offline. Your saved game stays in your own browser.

Does it work on a phone?

Yes. Terrastate and Romaterra are built for both phone and desktop, with the same save on the device you play on.

How do you win a season?

Take the Nexus, build the Earth Command Center on it and hold it for 12 ticks. If nobody manages that, the Last Battle decides: the whole world marches on the Nexus and whoever holds it the longest wins. In Romaterra the prize is Roma and the Imperial Palace.

Does the computer cheat?

No. The AI nations pay exactly what you pay and only know what they have scouted. Rival alliances have a war council that picks targets, signs pacts, scouts and strikes together, but always with the same rules as you.

How long is a game?

You choose: a Quick season of 200 turns, Standard of 400 turns or Epic of 840 turns. It is turn-based, so you can end each turn yourself, or let it run automatically at 1x, 5x or 20x speed. Difficulty is Recruit, Veteran or Warlord.

Is there multiplayer?

Not yet. What you play now is Season 0: single-player against AI nations, the training ground for the live world. The live world, one shared season with real people as the other nations, opens when 100 commanders have joined the waitlist on the Terrastate Discord.

What is Season 0?

Season 0 is the single-player phase of Terrastate and Romaterra. You learn the game against 300 AI nations while the community grows. When 100 commanders are on the Discord waitlist, the live multiplayer world opens. Players from Season 0 are marked as Founding Commanders.

What is Romaterra?

Romaterra is the same game set in the age of Rome. You gather denarii, grain, timber, iron, livestock and bronze, train legionaries, cataphracts, ballistae and war elephants, and fight to take Roma and hold the Imperial Palace.

What games is Terrastate like?

Terrastate is inspired by tick-based browser strategy games such as Planetarion, with the alliances, scouting and timed attacks of that genre, plus the map and diplomacy of a grand strategy or 4X game. The difference: you play against hundreds of AI nations, at your own pace, without waiting for other players.

COMMUNITY

Tell us your season

Questions, tips, screenshots and bug reports live on the Discord. It is also where you tell us whether you want real online multiplayer.

Join the Discord
SEASON 0 · LIVE WORLD AT 100 COMMANDERS
You are playing Season 0

The single-player game is the training ground for the live world: the same game, one shared season, with real people as the other nations. It opens when 100 commanders have joined the waitlist on Discord. Everyone who plays Season 0 is marked as a Founding Commander.

Be one of the first 100 commanders on the waitlist.

Join the waitlist (Discord)