A remastered version of the game, titled Dark Souls: Remastered, was released worldwide for PlayStation 4, Xbox One, and Windows in May 2018, and for the Nintendo Switch on October 19, 2018. The remaster was ported by the Polish studio QLOC, whereas the Switch version was ported by the Singaporean studio Virtuos. The game runs at a native 60 frames per second on all platforms except the Nintendo Switch and supports a 4K resolution on the PlayStation 4 Pro, Xbox One X, and Windows. Several changes were made to the online multiplayer, including adding dedicated servers, increasing the maximum number of players online from four to six, and password matchmaking.