Buy Dungeon Siege III, get DS1, DS2 free
Square details Steam-only offer.
Pre-purchase a PC copy of forthcoming action RPG Dungeon Siege III via Steam and you'll get the first two games in the series for free, publisher Square Enix has announced.
You'll be able to download and play Dungeon Siege I and Dungeon Siege II as soon as you've placed your order for the impending sequel.
"Providing Dungeon Siege I and Dungeon Siege II free of charge through Steamworks is Square Enix's way of showing appreciation to the fans of the Dungeon Siege franchise," said the game's executive producer David Hoffman.
Square also revealed that all PC versions of the game will include full Steamworks integration, including auto-updating, Steam Achievements and Steam Cloud support.
The Obsidian-developed title ventures out onto PC, PlayStation 3 and Xbox 360 from 17th June.
Earlier this week the developer revealed first details of the game's co-op features, which allows players to vote on the outcome of key story decisions.