[Nifty article with input from Ron Gilbert][link]. Game Dev Story has been a big timesink for me. It suffers from a distinct lack of polish, but it tickles just the right areas of my brain that spent months with old PC simulations like [Detroit][det] and [Air Bucks][airbucks].
[link]: http://www.wired.com/gamelife/2010/12/game-dev-story/ “What’s Right (and Wrong) With Game Dev Story’s Addictive Simulation | GameLife | Wired.com”
[det]: http://en.wikipedia.org/wiki/Detroit_(computer_game) “Detroit”
[airbucks]: http://en.wikipedia.org/wiki/Air_Bucks “Air Bucks”