openage VS UnknownHorizons

The new AOM is really buggy (c.f. The original), so "alive" probably only applies to AOE2. I'm not sure I'd call AOE4 "AOE" (yeah, it's branded as it, but so was "Age of Empires Online"), so the series basically died at AOE3. The other thing is the new DEs (which are relatively recent) and AOE4 are Windows-only (there were Mac releases for the originals, and the originals were much easier to get running under... - Source: Hacker News / 11 months ago

The only real but very small chance if there's no approval on the Disney side, is getting the Open Age engine (https://openage.sft.mx/) done and a set of talented artists doing all the work.... Source: 12 months ago

Openage would probably be the perfect fit, but it is in development. Source: almost 2 years ago

Is this not what youre looking for?: https://openage.sft.mx. Source: almost 2 years ago

Some people have been working on OpenAge for a while. https://openage.sft.mx/. Source: almost 2 years ago

In case you didn't know about it you might be interested in contributing to https://unknown-horizons.org/. Source: over 1 year ago

Unknown Horizons is inspired by the Anno series. Not exactly the same, but also a city builder with resource management. Source: over 1 year ago

Not mentioned yet: Unknown Horizons https://unknown-horizons.org/. - Source: Hacker News / almost 2 years ago

To add to the list: Unknown Horizons https://unknown-horizons.org/ Globulation https://globulation2.org/wiki/Main_Page Widelands https://www.widelands.org/wiki/Download/ All playable games, from an engine and artwork point of view. Don't expect much in terms of storytelling campaigns. - Source: Hacker News / almost 2 years ago

I suggest you google for "open source [genre]" or something like that. There are games like FreeCiv (Civilization 2 clone), FreeCol (Colonization clone), 0AD (medieval but maybe too much strategy oriented), Unknown Horizons (Anno clone) or Wildelands (Settler 1/2 clone). Source: about 2 years ago