Run 'n Gun
For Ludum Dare #28 - You only get one.
This game requires CMake, Boost, and SFML (SFML 2.0 should be enough, though I myself use the latest Git) It also uses many C++11 features so a reasonably new compiler might be good too, VS 2010 and GCC 4.3 for example.
Before you start off you might want to run
git submodule update --init, since it contains a git submodule.
Because of a small CMake file issue you need to manually set Kunlaboro_BOOST, otherwise it won't build. I might fix this before the end of Ludum Dare but don't expect it.
All the files in the resources folder are needed for proper gameplay, put them next to the executable you build.