I feel like the best options would be strategy such as CK3 as the other commenter mentioned or endless sandbox games like Minecraft and Euro/American Truck Simulator. X4 Foundations is a pretty fun space sim, and there are the Bethesda games with mods, Skyrim and Fallout 4 have some pretty cool mods and eventually Starfield too.

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Just recently started my fourth playthrough of Baldur’s Gate 3, with occasionally playing Starfield and Divinity Original Sin 2.