They kind of remind of the style in the Eador games. A bit baroque, but serviceable.
If that promise actually is delivered… that’s a happy dream after 20+ years of playing Civ games where that’s the deal.
On the other hand, I find the game prone to generate “anachronistic” and unplayable setups, like Germanic tribes appearing in an arid plains region. Would be “Germans” adapt and become something else, or they would just be gimped pretty much by design as their “forest fighting” bonus would be irrelevant?
I am not sure I love random tech trees, as you can get a very crazy roll that busts the game, but they’re certainly better than fixed tech trees, which are quite repetitive. Are those trees the same (random or not) for all players?
In terms of ensuring replayability, I do very much prefer a system like that of Stellaris, where you ‘draw’ possible discoveries/technical advances from a given set of ‘pools’ or ‘topics’ directly relevant to gameplay (governance, economics, etc.), while enforcing some sensible/logical dependencies between discoveries.
There’s some odd (or anachronistic) features, like the policies enacting handouts to increase population growth. That kind of sounded to me like granting public transport discounts to families with several kids.