Open-Source Strategy Games: Mindustry, Unciv and Wesnoth Compared (2026)

These three are free, open-source strategy games, each with a long history and an active project behind it. None of them needs an account to play, and our scan found no tracker libraries in any of them. They differ in pace, in how they play online, and in how finished their Android versions are.

Quick picks

• Real-time building and defending: Mindustry. Expect public servers to refuse the F-Droid build hosted here; playing alone and games hosted by a friend work.
• Turn-based empire building, a small download, or a complete Portuguese (Brazil) translation: Unciv.
• Tactical fantasy campaigns, on a tablet, and fine with a development version: The Battle for Wesnoth. Its Android port is an alpha and downloads about 0.6 GB of game data on first start.

They install side by side, so you can try more than one.

At a glance

Playing online

They take three different approaches:

• Mindustry joins games that are running live, on a dedicated server or hosted by a player. F-Droid’s build calls itself an “fdroid” build, and dedicated servers turn away builds of a different type unless their operator allows custom clients, which is off by default. Games a player hosts from inside the game accept it.
• Unciv passes the saved game between players after every turn, so nobody has to be online at the same time. The default server, uncivserver.xyz, is run by a community member, and the project’s documentation lists it as unofficial. You can switch to another server or run your own.
• Wesnoth has an official multiplayer lobby at server.wesnoth.org, plus an add-on server for user-made campaigns.

The files

All three are F-Droid’s builds, compiled from source and signed with F-Droid’s key. That means none of them can be updated with the developers’ own APKs from Google Play, itch.io, GitHub or SourceForge, or the other way round, without uninstalling first. Back up your saves before you switch.