The game I worked on last year, Neighbors From Hell, has finally been officially announced. You have to sneak around the house of your horrible neighbor and install practical jokes while he's not looking. It's a concept that should hopefully appeal to a pretty broad audience. Transforming it into a game turned out to be harder than expected, and we finally came up with a mixture of adventure-type object combining with timing-based action. The great graphics, animations and sound effects make the whole into a fun experience, both for us to develop and for people to play. At least, we hope it is, but the reactions during our playtests were quite positive. The game took nine months to develop.
The game already has a fansite.