User blog comment:G0LD3NF1RE/Dawnguard encounters issues with Playstation/@comment-68.48.230.6-20120920234459/@comment-68.48.230.6-20120922002446

What theory from Obsidian? All Obsidian worked with was the Fallout 3 engine which they customized a bit into the New Vegas engine. At best that's only going to tell an Obsidian dev how parts of the Skyrim engine work. Calling it all Gamebryo is not right. The engine has been customized beyond stock Gamebryo and it evolves with each release.

As for the initial release of the PS3 version, the ship date arrived and Bethesda had the game to the point where it seemed to work (it passed some amount of internal playtesting) but the problems get worse the more you play it. That implies you're running out of resources which explains why they can't add any additional content. You would have gotten Dawnguard by now. The 360 may be the leading console this generation but the PS3 is still close to the 360's install base so that's a lot of money Bethesda wants but can't tap into. I am betting, if you wait a few more weeks, you'll see the PC get Hearthfire while the PS3 doesn't. Bottom line is the PS3 was designed with too little memory. It doesn't do you any good to have a lot of computing power if you don't have anywhere to store the results of your calculations and that's what games are under the hood: software algorithms.