Bastion developer, Supergiant Games, are at work on their next title—Transistor, a sci-fi action RPG.

Microsoft are celebrating Xbox Live’s 10th anniversary today, and are running discounts for members in honour of the event.

The game will be available today (August 30th), worldwide, and will contain the full experience of the PC and XBLA original.

Bastion will be released first via Steam this month, and will then proceed to other PC portals.

Indie RPG, Bastion, will hit Xbox Live Arcade next week. Here’s a story trailer.

The standout feature, Supergiant say, is a “reactive narration system” which responds to the players actions in realtime. Bastion apparently features “thousands of lines” of narration.