As reported by Destructoid. "The Transformers games were delisted on Steam Also The Legend of Korra Today marked the beginning of Steam's Winter Sale and that means folks are poking around to potentially give older games a second chance now that they're discounted. With that in mind, I hope you weren't in the mood for Transformers over the holiday break. You're going to come up empty-handed. Transformers: War for Cybertron, Fall of Cybertron, Rise of the Dark Spark, and Devastation are no longer available for purchase on Steam, and that also goes for their DLC packs. What's more, we've lost out on another (albeit much less fondly remembered) game from Platinum: The Legend of Korra. These games have also vanished from PlayStation Network but, at the time of writing, are still available for purchase on Xbox Live. That said, it's surely only a matter of time if this is a licensing issue. It's a shame Activision didn't give an advance notice." If you own the games you can still re-download them from your account but people can't buy them now.