World be worth getting for the multiplayer alone. That was always good fun, unless you were among the people that could not connect to anyone because you forgot to sacrifice your unborn child to the sun god of some strange networking reason.

https://omaps.app/test.html

This page lists all links that OM is supposed to open, including GM.

I played it as a kid and then some friends reintroduced me to it on uni, including time of custom maps and game modes (the rules of which had to be enforced by ourselves)

Like maps where you only had rope, but there was a crate spawn every turn.

Or where you had to rope over a spire in the center of the map before you were allowed to attack, with a 45s turn timer to make it even spicier.

At some points, we even projected the game above the blackboard while doing coursework, which was as about as productive as it sounds.

a big open world planet with a dense series of dystopian cities, alongside underground resource-rich zones.

That is stupidly overambitious and will necessarily lead to a lack of detail and charm.