Tutorials : 0 A.D. The Ultimate Free & Open-Source Ancient RTS in 2026

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0 A.D.: The Ultimate Free & Open-Source Ancient RTS

 

If you are a fan of classic real-time strategy (RTS) epics like Age of Empires II, 0 A.D. (developed by Wildfire Games) is a hidden gem you need to check out. What started out as a massive mod concept has blossomed into a beautiful, historically accurate standalone strategy game featuring civilizations at their absolute peaks. Best of all, it is entirely free, open-source, and cross-platform.

Here is everything you need to get the game running and successfully survive your very first match.

How to Install 0 A.D.

0 A.D. runs flawlessly on Windows, macOS, and Linux. Because it is entirely community-driven, you will never have to worry about paywalls, in-game ads, or hidden microtransactions.

1. Windows & macOS

• Go to the official website: play0ad.com/download.

• Download the dedicated installer for your platform.

• Alternatively, Windows users can easily find it on the Microsoft Store under "0 A.D. - Empires Ascendant".

2. Linux

Most distributions have 0 A.D. directly in their package managers. You can install it using a simple terminal command depending on your setup:

• Ubuntu/Debian-based: sudo apt install 0ad

• Flatpak (Universal): flatpak install flathub com.play0ad.zeroad

Commencing Your First Game

The macroeconomy in 0 A.D. moves quickly, and an unoptimized start will leave you vulnerable to early AI rushes. Follow this exact sequence during your first match to set up a robust economy and basic defense.

1.Select Your Match Settings:Main Menu.

Launch the game and click Single Player -> Matches. Select a Mainland map (simplest for beginners), set the AI to Easy, and choose an intuitive civilization like the Hellenes (Athenians/Spartans) or Romans.

2.The Immediate Split:Seconds 0–30.

As soon as the map loads, split your starting citizens. Unlike traditional RTS games, your basic infantry double as resource gatherers. Task your women to pick nearby berry bushes and your male infantry to chop wood. Send your lone cavalry unit out to scout the immediate fog of war for nearby animal herds or mines.

3.Establish Resource Drop Sites:Minutes 1–2.

Walking back to the Civic Center (your main base) wastes precious time. Select 1–2 workers and build a Storehouse right next to a dense forest and a Farmstead next to your berry bushes.

4.Saturate Worker Production:Minutes 2–5.

Queue up continuous worker production at your Civic Center. Keep a sharp eye on your food intake. In 0 A.D., women gather food significantly faster than men, making them perfect for domestic gathering, freeing up your soldiers to tackle heavy timber and stone lines.

5.Advance to the Town Phase:Minute 5+.

Once you gather 500 Food and 500 Wood, select your Civic Center and click the icon to advance from the Village Phase to the Town Phase. This unlocks advanced military structures like the Barracks, allowing you to train dedicated combat units to fend off incoming skirmishers.

Pro Tip: Keep an eye on your houses! Population caps fill up fast. Always ensure one of your woodcutting citizens is proactively building a house before your production line freezes.