Runner Shells define the gameplay identity in Marathon

Bungie continues to unveil the gameplay pillars of Marathon with a new Developer Insights focused on Runner Shells, one of the key systems that will define the experience of every raid. Powerful, configurable, and expendable, these artificial bodies are much more than a mere chassis: they represent the role you adopt in every mission.

Runner Shells function as playable archetypes, designed to adapt to each player's style. Throughout your runs, you can customize them using weapons, mods, cores, and implants, creating unique builds that directly influence how you move, fight, and survive. Every choice matters, and every adjustment defines your approach to risk and reward.

The system reinforces a clear philosophy: in Marathon, identity is not permanent, but mouldable and replaceable. Losing a Runner is part of the cycle, but it also opens the door to new builds and strategies. With Runner Shells, Bungie is betting on flexible and deeply tactical progression, where experimenting and adapting is just as important as making it out of the mission alive.