DG2 comes with a story campaign featuring 21 stunning maps, dynamic level movement, an expanded story and cast of characters, hundreds of challenge mode experiences, new multiplayer modes, a procedurally driven audio score and the ability for players to build their own levels. DG2 also introduces players to DG Architect, a level creation tool set connected to Steam Workshop where players can create their own unique levels to share and possibly even sell if selected.
DG2 for the PC was funded in part by Dracogen, a private investor after a 2012 Kickstarter campaign funded the original game's DLC, Defense Grid: Containment. DG2 is developed by Hidden Path Entertainment and published by 505 Games.