VybeCiv

You start as the ruler of one tribe on a hex map of Earth, moving settlers, workers, explorers and soldiers a few tiles per turn. Unexplored tiles stay hidden until a unit gets close, and speedy explorers are there for that. The world you leave behind shrinks to a single tile on the next map, keeps sending you output, and rivals try to grab it.

Growth waiting on full food stores. Happiness cost per new city and citizen, with slower growth and output below zero. Automatic new ages, with fresh units and buildings, after enough research. Three maps, Earth, Solar System and Galaxy, each with its own cities, units and rivals. Two wins, Intergalactic Gate built first after reaching Galaxy, or every rival city wiped out on any map, with rivals chasing both. Turn 300 limit, where top score wins if nobody else has.