Real starting points
Curated scenarios begin from researched historical moments with period pressure — scarcity, disease, trade, unrest — already in motion.
What-if timelines
Alternate History Game Powered by AI
Every alternate history argument ends with "but what would it actually be like?" Altworld answers by putting you there — in a world that tracks factions, prices, rumors, and grudges while history bends around you.
For alternate-history readers, map-game veterans, and what-if obsessives who want to test a timeline by living in it.
An alternate history game usually means one of two things: a grand-strategy map where you repaint borders, or a branching story that was written in advance. Altworld is a third kind — an AI-simulated timeline experienced from inside. You choose a starting world (real-history scenarios like Viking-age Birka in 864, plague-struck Bristol in 1348, Edo-period Osaka in 1702, Qajar Shiraz in 1820, or revolution-era Chihuahua in 1910) or forge a divergence of your own, then live in it as a person with a class, an occupation, and problems.
The simulation keeps canonical state: who holds power, what things cost, which rumors are spreading, who owes whom. When you act — in plain language, anything you can phrase — the engine resolves the action against that state before a word of narration is written. That is what keeps a long what-if coherent instead of drifting into contradiction.
You control how strict history is: strict, plausible, or inspired. Strict keeps you honest to the period; inspired lets the timeline run wild. Either way the world remembers, runs are saved, and you can branch a snapshot to explore the divergence's divergence.
Divergence with memory
Your what-if compounds: a grain shortage becomes a riot, a rumor becomes a purge, an alliance you brokered outlives you.
Any point of view
Play the dock worker, the merchant heir, the garrison clerk, or the smuggler — the same timeline reads differently from each life.
Matching searches
Built for this kind of play.
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Is this a map-painting grand strategy game?
No. Altworld is person-scale: you live inside the timeline rather than commanding a nation. If you want both angles, it pairs well with map games like Pax Historia.
Can I set up my own point of divergence?
Yes. Forge a world from a plain-language pitch — the engine builds factions, locations, NPCs, laws, and starting pressure around your what-if.
How historically accurate is it?
You choose: strict, plausible, or inspired. Strict mode holds the run close to period reality; inspired mode lets the timeline diverge freely.
Is it free to play?
Yes. Your first 10 turns work as a guest with no account, and free accounts get daily Candles to keep playing.
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