Started with an easy data analysis test in R. First interview with Lead data scientist and Creative director - generic questions on hypothetical analyses of gaming data, and questions about the free-to-play industry. Second interview with Head of studio - questions about the free-to-play industry, and how I could serve the company (e.g. interfacing with the game design/development teams).
The whole interview process took about 45 days, after which I received a call where they "verbally committed" to sending me an offer in the next days.
Only problem? after 14 days of waiting* they told me that they had no offer for me because of budget issues. Even worse? they knew I refused an actual job offer from another company, and yet failed to send me a contract.
"Besides that", they are really nice people and the interview process was smooth.
*funny side note: during those 14 days I have been told at least 4 times that I would have gotten FOR SURE an offer in the coming few days - and every time that was delayed for different reasons (e.g. the offer is ready, but we need the CFO to sign it).