XCOM reboot was originally real-time, and had vehicles We’re nine years removed from XCOM: Enemy Unknown, the incredible reboot of the sci-fi turn-based strategy game. One of its lead developers has shared part of the pitch document for what became Enemy Unknown, revealing some potentially massive changes. On Twitter, Jake Solomon, the lead designer on Enemy Unknown, put up an image of the front page of his vision for bringing back the classic war game back in 2005. A lot of what’s described, like the suspenseful, squad-based combat, doing research, and managing the panic levels around the world, made it into the final game, but a few elements are distinctly different.