Of all the announcements Microsoft made during GamesCom 2014 today, there was one big surprise: Rise of the Tomb Raider is exclusive to Xbox One. At first blush, this doesn’t seem to be your typical timed exclusive that Microsoft and developer Crystal Dynamics purposefully forget to mention at an Xbox conference. No, the evidence suggests this is an actual exclusive game only coming to Xbox One.The strongest evidence Rise of the Tomb Raider is an Xbox One forever-exclusive comes not from Microsoft, but from Crystal Dynamics Head of Studios Darrell Gallagher. In a post to the Tomb Raider Community, he states:“This doesn’t mean that we’re walking away from our fans who only play on PlayStation or on PC. Those are great systems, with great partners, and amazing communities. We have Lara Croft and the Temple of Osiris coming to those platforms this December, and Tomb Raider: The Definitive Edition is available on PS4.”So, Tomb Raider games are still coming to other systems, just not this one — but an Xbox exclusive makes little sense.Right now, the Xbox One is not doing great. It has sold some 5 million units compared to the 9 million PS4s in homes. From Microsoft’s perspective, any exclusive is great news as it potentially helps them close the gap to Sony. But for Crystal Dynamics, it makes no sense. They have agreed not to allow 9 million (or more) gamers have access to the game. Unless Microsoft has set a new record for cash handouts to a developer, there’s no way they can offer something better than that.It could still turn out that this is just an exclusive for Xbox One during the holiday 2015 season — which means a timed exclusive — and for anyone who owns a PS4, I really hope it is. This is still a silly decision for Crystal Dynamics if that turns out to be the case, though. They’ve pissed off a lot of Tomb Raider fans today, and lost at least a few hundred thousand sales in the run up to Christmas.Update: A day after announcing this was an Xbox One exclusive, Microsoft’s Phil Spencer has now confirmed the game will also make an appearance on Xbox 360. It still makes little sense for Crystal Dynamics to not let PS4/PS3 and PC gamers have the option to buy and play the game, but at least more than 5 million can now.