US version of the game, to use the DLC code you need to have a US account.
Instructions for creating a US account: https://www.gameexpres.cz/manualy/PSN_US_ucet.txt

Silent Hill 5 is a dark world of chaos and terror, wrapped in HD graphics and a story that sheds new light on the terrifying town of Silent Hill. You will follow the footsteps of Alex Shepard, a war veteran returning home from his overseas tour of duty to investigate the mysterious disappearance of his younger brother Joshua. This will take him through the small isolated community of Shepherd's Ravine and eventually through the eerily empty streets of Silent Hill. The game naturally builds on the solid foundations of its predecessors - atmosphere, adventure and storytelling. As you try to deal with the next terrifying and perverse incarnation of evil roaming the gloomy town of Silent Hill and Shepherd's Ravine, you will not be able to do without using the improved combat system and applying a variety of offensive and defensive maneuvers. In any case, prepare yourself, if it is possible to prepare for such a thing, to encounter a lot of monsters and monsters. In addition, your path to uncovering the darkest secrets of Silent Hill will be complicated by various puzzles. Thanks to them, as well as the original atmospheric soundtrack by Akira Yamaoka, the entire weight of the horror falls on you.