Game Dev Tycoon is a business simulation game where you replay the history of the gaming industry by starting your own video game development company in the 80s. Create best selling games. Research new technologies and invent new game types. Become the leader of the market and gain worldwide fans.
The game seems like it will be awesome at first, but quickly proves to be little more but a shallow tease at what could have been better. I don't see the point of reiterating what others have said, but I will say that the entire process of making a game or engine seems incredibly arbitrary, and the lack of any actual diversity in gameplay will make the end stages seems just as trivial and boring as the beginning.
It had some nice points, and it was always fun to imagine my 'dream game (to the limit the game allowed me)' succeeding, though of course it was difficult with the way the game decided what made a good video game. Probably the worst part (and oddly at that) is the fact everything feels so small. You never feel like you're in a huge video game corporation by the end of the game, you only have about eight programmers and around ten other people in various departments.