Is Unknown Horizons completely free?

Yes. Unknown Horizons is open-source software released under the GNU GPL, with no purchase or paid currency required.

What kind of game is Unknown Horizons?

It is a real-time economy and city-building strategy game focused on island settlement, production chains, trade, and diplomacy.

What is the current Windows version of Unknown Horizons?

The latest broadly packaged stable Windows release is 2019.1. Development continues in the source repository, so PlayBound lists it as Testing until newer Windows packaging is verified.

Does Unknown Horizons have multiplayer?

No. Unknown Horizons is a single-player game, so there is no multiplayer mode to join or host.

Is unknown-horizons still active in 2026?

Yes. unknown-horizons met PlayBound's "actively maintained" criterion when last checked on 2026-08-30 — it had a release or meaningful commit within the preceding twelve months.

Is unknown-horizons open source?

Yes. The source code is published at github.com/unknown-horizons/unknown-horizons under Open Source. Open source is a nice property when it is present — it is not required to clear the PlayBound Bar.

Unknown Horizons — Free Simulation

GitHub Release1/13/2019

Release 2019.1 Retagged on 12.01.2019 because of an version string bug. Needs fifengine 0.4.2 and fifechan 0.1.5 [**Changelog**](https://github.com/unknown-horizons/unknown-horizons/blob/master/doc/CHANGELOG.md) For Linux Distributions Packagers: We dont provide anymore extra package please use Setup.py Windows release is now out too. Reuploaded on 24 Feb. 2019

GitHub Release2/7/2017

2017.2

Release 2017.2 Needs fifengine 0.4.1 and fifechan 0.1.4 [**Changelog**](https://github.com/unknown-horizons/unknown-horizons/blob/master/doc/CHANGELOG.md) For Linux Distributions Packagers: [unknown-horizons-2017.2.tar.xz](https://github.com/unknown-horizons/unknown-horizons/releases/download/2017.2/unknown-horizons-2017.2.tar.xz) For Windows: (last update 10.6.1017 15:00 UTC +1) [Unknown-Horizons-2017.2.158-Setup-VC14-x86.exe](https://github.com/unknown-horizons/unknown-horizons/releases/download/2017.2/Unknown-Horizons-2017.2.158-Setup-VC14-x86.exe)

GitHub Release1/16/2017

2017.1

Release 2017.1 [**Changelog**](https://github.com/unknown-horizons/unknown-horizons/blob/master/doc/CHANGELOG.md) For Linux Distributions: unknown-horizons-2017.1.tar.xz For Windows: Unknown-Horizons-2017.1.134-Setup-VC14-x86.exe Lastest Update on it: 28.01.2017 17:20 (UTC +1)

GitHub Release12/31/2014

2014.1

Release 2014.1. See doc/CHANGELOG.md for release details. to use with FIFE > 0.3.5 apply this patch http://git.io/s8Ml4Q

Releases

Testing release for windows

2019.1

2017.2

2017.1

2014.1

Unknown Horizons

Releases

Testing release for windows

2019.1

2017.2

2017.1

2014.1