Comment Not Microsoft's fault (Score 2) 131
I actually RTFA.
Microsoft changed the requirements just a week after signing the deal. Not a nice thing to do, but Darkside hadn't spent all the money then, and could have simply said no. They agreed to the change with the hope they could convince Microsoft to give them more money later.
Microsoft decided they didn't want to throw more money than what they wanted to at it and did the smart thing and cancelled the contract. They had already spent $2M, the studio wanted up to $3M more than they budgeted for to complete the project. Cancelling the project saved them $1M and all of the risk involved.