Dungeon Siege: Legends of Aranna, the 2003 expansion to Gas Powered Games’ action-RPG Dungeon Siege, expanded the original title with new areas, classes, items, and a campaign continuing the series’ high-fantasy storyline. Over time, players and communities produced localized patches, bug fixes, and unofficial updates — among them regional language patches such as a French (FR) patch — that aimed to make the expansion accessible to non-English players and to address lingering technical and gameplay issues left unresolved by official releases.

Since the official 1.50 version has compatibility issues with modern Windows, the community uses the following "patches" to fix graphics and multiplayer:

Because the Steam version of Dungeon Siege often omits the Legends of Aranna expansion, community patches are essential for modern users.

Many patches require you to use a custom executable (DSLOA.exe) to bypass the original 800x600 resolution limit.