Dungeon Siege games in order

All 4 games of the Dungeon Siege series in the order they came out, from Dungeon Siege (2002) to Dungeon Siege III (2011).

1. 
   Dungeon SiegePC, Mac · Wargaming Seattle
   785 Apr
2. 
   Dungeon Siege IIPC · Wargaming Seattle
   8316 Aug
3. 
   Dungeon Siege: Throne of AgonyPSP · SuperVillain Studios
   30 Oct
4. 
   Dungeon Siege IIIPC, PS3, Xbox 360 · Obsidian Entertainment
   7616 Jun