Aeria Games, an online gaming company based in Japan, has released a browser-based game entitled "Caesary" that resembles one of my old favorites, Caesar III. Apparently you can play the game online for free and does not require a download. I wondered how the company produces revenue so I did some research and found that, although they allow players to play the game for free, they have advertising "in world" and offer game-related items for sale in virtual malls that accept micropayments. This sounds like the type of malls you find throughout many environments created in Second Life.
Here's the official game trailer from YouTube: