The Steam Special Edition includes additional content by expanding on both the in-game and behind-the-scenes stories of Defense Grid 2, offering a visual novel experience that extends the campaign's narrative as well as art, soundtrack and making of insights. Purchasing or upgrading to the Special Edition includes:

If you purchase or upgrade to the Special Edition you will receive:

• A Matter of Endurance — A 30-minute audiobook featuring character voices and concept art from an original story by Hugo Award-winning author Mary Robinette Kowal, set between the events of Defense Grid: Containment and Defense Grid 2.

• Defense Grid 2 Original Soundtrack

• The Making of Defense Grid 2 — A 312-page PDF by Russ Pitts, a reporter and author embedded with the development team throughout the full development cycle of the game.

• The Art of Defense Grid — A 73-page PDF art book showcasing concept art from the development of the original Defense Grid.

• The Art of Defense Grid 2 — A 123-page PDF art book showcasing concept art from the development of Defense Grid 2.