Hatred has cleared Greenlight and is now live on Steam with its [AO] Adults Only rating, possibly the first of its kind on the service.
Having been rated Adults Only by the ESRB last month, Hatred has received its own Steam page.
If you’re viewing the game’s Steam page from within the United States, you’ll see the AO rating in the usual place. There is no pre-purchase button currently though.
Should this rating carry through to the final release, Hatred would be the first Adults Only game on Steam.