Polytopia if you like strategy. You can buy tribes if you want to, but the basic 4 they give you have the "strongest" in the game, there's no p2w. I've ended up buying all the tribes and am well on my way to all the skins (they only have one extra skin for some of the tribes at the moment) but that's because I play it a ton and have for years, so it's just to support the dev.

Dev is active and makes improvements regularly, just released a long anticipated update that had some significant game play changes so it feels fresh, and the changes seem to make it more interesting / balanced so far.

There's also a very dedicated fan community on discord that sets up frequent tournaments or team games if you find you like it.