Kordanor brought to my attention that Realms of Arkania: Blade of Destiny has been pulled off Steam due to the developer stopping their publishing deal with UIG.
More information.
Check out the thread linked above for information from Kordanor.The reason for the pull from steam is that we as a developer ceased our publishing cooperation with UIG for good. There are some legal issues to be resolved, and as soon as they are, I will come back with an update. This has of course no effect whatsoever to your already bought game, you can play it regardless of whether it is available to be bought on Steam at the moment.
More information.