The game studio that brought you Minecraft, Mojang, has cancelled a project with another company due to unique reasons, as the project was in its prototype stage. The project was supposed to be a first person shooter where Mojang and another company collaborated with one another, but has ended.
The reasons for the cancellation can be best expressed by the man himself, Notch. Notch says that Mojang "did not want more external dependencies" and that "The success of Minecraft meant we could focus on projects fully owned by us."
Although, there will be collaborations in the future, but if the other company wants to "make money", then there won't be any collaboration between them at all, interesting.