City of Wonder developer Playdom continued fleshing out the game’s mid-level tech tree this week, adding two more technologies for players to research: Hydraulics, and Fine Art.
Hydraulics requires level 14. It takes 26 hours to research, and unlocks a variety of water-themed buildings, including aqueducts, and water fountains. On the tech tree, it follows Irrigation, and provides another pathway to Steam Power.
Fine Art requires level 19. It can be researched in 30 hours, and unlocks the Louvre wonder. It follows Art on the tech tree.