About ONE CITY

Build a giant city block by block before the clock runs out, then fly over everything you made.

On a computer: WASD move, Space jump or fly up, Shift fly down, mouse look, click place, R rota
On a phone: Left stick move, drag right side to look, tap to place, buttons for up and down

gabrielvitkinee described this game in a sentence on OhMyGames and the AI built it. You can make your own the same way, free to start.