One that pays in bitcoin? I liked EVE Online, but space fantasy only reminds one of how much of life they're wasting. The building games look cool and one can rationalize away the wasted time with a completed model that can be modeled or bartered in the real world... Even though I've only seen videos of it, maybe that one game for me would be, Cities: Skylines. At least there would be something for the real world left at the end... It reminds me of Autodesk Civil 3D that I used in a past life, just gamified.