Project Contingency

Project Contingency is a fan-made Halo game being developed by a group of Halo fans in CryEngine. It is going to be a first person shooter, but no release date has yet been announced. The game is neither endorsed nor supported by either 343 Industries or Bungie.

Leaked Screenshots
There were some screenshots leaked by a member of the game's development team. They had the 343 Industries logo on, to pass them off as Halo 5 leaks. However, they were denied by 343 and it was soon revealed on the Project Contingency forums that they were from Project Contingency itself.