Steam Game REALITY Vandalized (No GAs here, just some weird news)

So, I was just minding my own business, when Steam decides to update a couple of games. No big deal, right? Well, it's when I looked at what was updated that I saw something... peculiar. One of the updated games was called "Donkey on the drums". I had no idea what that was, as I'm pretty sure I would remember installing a game with such a weird title (then again, I'm pretty forgetful, so I might have actually forgotten it). A quick check on the forums led to the store page, where the game's real title was REALITY.

Stranger still, it appears that the game's "update" actually deleted the game from my hard drive ,leaving behind only DirectX installers (I had installed it some time ago, but forgot all about it. See, there's that forgetfulness I mentioned!). The game's community hub was the main target of the defacement, including attacks on the game's developer, ALX, and deleting all the forum posts (a cached version of the original hub can be found here, but all posts have been removed save for one new one asking what's happened). Oh, and the EULA for the game was also changed to say "fuck all you piece of shit crap" (tried to upload picture of this to imgur, but it's not working for me). Turns out these changes have been going on for several hours, if SteamDB's app history of the game is any indication.

Doing some digging, I found a couple of people in a group called "Donkey on the Drums ELITE" that I can only assume have something to do with this, considering one of the members is the one editing the news posts. It's either that, or the developer is having one hell of a breakdown, but I'm leaning towards the former. (EDIT: It is confirmed to be an ex-developer of the game that still retained Steamworks access to the game) That's got me thinking: have there been other Steam games that have been screwed up like this? Has there ever been another game that's gone through some sort of (what I can only assume is) malicious activity on their community hubs? As for trying to contact the dev, last I checked they were offline, but it looks like they played the game earlier, so I might have to send a message on their group page. Their game's also still up on GameJolt as well, but that hasn't been affected by whatever's going on.

UPDATE: ALX, the main (and only) developer is aware of the damage, and is currently working to undo what was vandalized, including attempting to reupload previous builds. His statement