Is there a free version of Master of Orion?

No. Master of Orion: Conquer the Stars is a paid, one-time purchase on Steam at $24.99, with no free trial or free-to-play tier. If you want a free space 4X to try right now, Nexas Code 2D is free and runs in a browser with no download.

Can I play Master of Orion on a Chromebook?

Not officially. Master of Orion runs on Windows, macOS, and Linux as a downloaded Steam client, and Chromebooks aren't a supported platform for it. Nexas Code 2D plays directly in the browser, so it works on a Chromebook, phone, or tablet in landscape without installing anything.

How long does a game of Master of Orion take?

A full campaign is turn-based and commonly runs well past 20 hours depending on galaxy size and how you choose to win. For the same build-an-empire feeling on a much shorter clock, a Nexas Code 2D match resolves in about 15-30 minutes.

Master of Orion alternatives

Games like Master of Orion that you can play right now, free

Someone searching "games like Master of Orion" usually still wants the fantasy of growing a space empire from one scout ship into a galaxy-spanning power, but is looking for a way in that doesn't require relearning a dense tech tree and diplomacy screen, or committing 20-plus hours of turns just to finish one campaign.

Play free in your browser No download, no installer, no account needed to start a match.

What Master of Orion is

Master of Orion: Conquer the Stars is a 2016 reboot of the 1993 classic 4X strategy game, developed by Nimble Giant Entertainment and published by Wargaming. You lead one of several alien empires across a turn-based galaxy: scout unexplored systems, climb a wide tech tree, design and build warships, negotiate or spy on rivals, and invade enemy worlds to expand your empire.

What Nexas Code 2D keeps

Nexas Code 2D is a free 4X space strategy game that runs in a browser tab. It is not a clone of Master of Orion and it is not trying to be — it is much smaller. These are the specific things it carries over.

A branching research ladder that unlocks stronger ships and infrastructure as you play - Nexas Code 2D splits it into three lanes (Fleet Doctrine, Industrial Program, Planetary Grid) instead of Master of Orion's single tech web.
Multiple playable factions with genuinely different strengths - Master of Orion's roster of alien races becomes three factions in Nexas Code 2D (Terran Empire, Xeno Hive, Machine Collective), each with its own weapon physics and a unique Titan-class flagship.
Planetary invasion as the actual conquest step, not just a fleet battle - Nexas Code 2D breaks a world's orbital guns from space, lands troops, then plays out a real-time ground battle for the surface bunker.
A hull-class progression from small, cheap ships up to a singular endgame superweapon - Master of Orion's larger ship classes become Nexas Code 2D's six-rung ladder from corvette to Titan.
A win condition built on eliminating rival empires - both games end in last-empire-standing territory, though Nexas Code 2D has no diplomacy track to win through instead.

What it does not have

Straight answer: Master of Orion has real diplomacy and espionage against rivals, a ship designer where you place weapons and armor by hull slot, and turn-based campaigns that stretch past 20 hours. Nexas Code 2D has none of that: no diplomacy, no espionage, no custom hull editor - and a match is over in 15-30 minutes.

Master of Orion vs Nexas Code 2D

	Master of Orion	Nexas Code 2D
Price	$24.99 one-time (Steam)	Free
Platform	Windows, macOS, Linux download	Browser - Windows, Mac, Linux, Chromebook, phones/tablets
Session length	Full campaign often 20+ hours across turns	About 15-30 minutes per match
Pace	Turn-based	Real-time
Multiplayer	Online multiplayer supported	Live 30-player free-for-all, plus private lobbies
Install	Steam client download	None - open a URL, no account needed to start

Master of Orion details checked September 2026. Prices and storefronts change; the free half of the table does not.

So is it worth a click?

If what you love about Master of Orion is planning turns, designing ships slot by slot, and out-diplomating a dozen AI empires over an evening, stay there - it still does that better than anything else. If you just want the "grow an empire, take planets, watch the fleet fight" feeling in a browser tab on a lunch break, this is that, in real time, free.

Galaxy to ground, one continuous zoom

Scroll out and you are reading a galaxy map. Scroll in and it unfolds into a single star system. Keep going and you are standing on the planet, watching a real-time ground battle for the bunker. No loading screens between the three.

A 4X match that fits in a coffee break

You take your first world in under a minute. The research ladder, doctrine drafting and planet specialisation are all there — they just resolve in the time a grand-strategy game spends on its tutorial.

Up to 30 commanders on one map

Solo matches run at 4, 8, 16 or 30 commanders against bots. Multiplayer is a live 30-player free-for-all with private lobbies if you would rather bring your own.

Runs in the tab you already have open

No installer, no launcher, no account required to play. It is a WebGL build that starts on a laptop, a Chromebook or a phone held sideways.

Questions people actually ask

Is there a free version of Master of Orion?: No. Master of Orion: Conquer the Stars is a paid, one-time purchase on Steam at $24.99, with no free trial or free-to-play tier. If you want a free space 4X to try right now, Nexas Code 2D is free and runs in a browser with no download.
Can I play Master of Orion on a Chromebook?: Not officially. Master of Orion runs on Windows, macOS, and Linux as a downloaded Steam client, and Chromebooks aren't a supported platform for it. Nexas Code 2D plays directly in the browser, so it works on a Chromebook, phone, or tablet in landscape without installing anything.
How long does a game of Master of Orion take?: A full campaign is turn-based and commonly runs well past 20 hours depending on galaxy size and how you choose to win. For the same build-an-empire feeling on a much shorter clock, a Nexas Code 2D match resolves in about 15-30 minutes.