Heist is a game that I made over the span of a weekend as a fun side project. It is developed using C# and Unity 3D. The project was a way for me to push myself to complete a project, and to learn about and practice the later stages of development, such as polish and level design. Whilst not being the most technically impressive game, Heist was a great learning experience, and gave me a very fun weekend.
Heist is available here.