Designer Greg Louden told Game Informer that had the TV episodes been on-disc, the game's overall file size could have become really, really big. This is in part because there are 40 different variations of how the story plays out, depending on your choices in the game.
The length of the TV episodes can vary depending on your choices and "that's why we needed to stream it," he said.
Louden said he could not provide a file size estimation for what the game and TV show would have been, but the game alone is 44 GB. Additionally, not including the episodes on disc afforded Remedy some benefits.
"We wanted to create this high-quality game experience and use all the disc space to maximize the visual effects qualities of the animations and all that stuff," he said. "So for us, it was kind of like a natural choice."
"I think if we only had one show, it probably would have fit, but we didn't want to do that," he added. "We wanted to do this active experience where you negotiate the story and change it, so this was the only real solution to our problem. When we figured out how big the data was, we had to backpedal and think of some good solutions and this made sense."
If you want to download the Quantum Break TV episodes to watch them offline, you can do that, but only on Xbox One, Louden confirmed.
The game's TV show component stars "X-Men" actor Shawn Ashmore, "Lord of the Rings" actor Dominic Monaghan, and Lance Reddick of "The Wire," among others.
Quantum Break launches on April 5 for Xbox One and PC. The game was announced as an Xbox One exclusive, but a PC version was confirmed in February. Everyone who preorders the digital Xbox One edition also gets a free copy of the PC version for Windows 10.
GameSpot also recently spoke with Louden, who told us more about the story's influences and just how deep the time-travel hole goes.