Space Marine is out in the UK, but not on Steam
UK fans of everlasting war in the 41st millennium will have been looking forward to the release of Space Marine today, but if you're looking to pick it up on Steam, then there's bad news. Space Marine isn't available on Steam. The old Space Marine Steam page has been replaced by a message saying "this item is currently unavailable in your region."
It seemed likely that this would happen when the Space Marine demo pulled the same vanishing act a couple of weeks ago. Previously, Dragon Age 2 and Brink have vanished from Steam in the UK with no explanation. Brink eventually reappeared several weeks after launch. Hopefully Space Marine will return in good time. Until then, this means yet more frustration for UK customers.