Immortal Cities: Nile Online is now out of beta testing, offering a free browser-based city-building strategy game from Tilted Mill Entertainment. Here's the deal:

Nile Online is a free to play browser game that features an ancient Egyptian setting where you begin by building a single city, harvesting local resources and turning them into goods and structures for your society so you can conduct trade with your neighbors, near and far, along the Nile. Eventually you will expand your empire to encompass several cities, offer goods to the gods, raise armies, and set up labor camps to build prestigious monuments to become Pharaoh. Once you’ve achieved the rank of Pharaoh, you can opt to construct your tomb and achieve Immortality! With an inviting visual presentation, backed by decades of strategy game development expertise, Nile Online offers a compelling gaming experience that can be played anywhere.