Campaign: In a world where despair reigns and humanity's survival is at stake, the Master Chief stands ready to face the fiercest adversary yet. Step into the boots of this legendary hero and engage in an expansive open-world journey across the vast Halo ring. With Network Campaign Co-Op and Mission Replay features, relive epic moments, uncover collectibles, and explore the wonders of Zeta Halo solo or alongside three allies. Free-to-Play Multiplayer: Experience a reimagined and free-to-play multiplayer landscape! Boasting over 70 maps, billions of customization options, and countless community-created Forge experiences, this is the most comprehensive multiplayer offering ever. Dive into a variety of gameplay modes, from high-stakes ranked battles to whimsical custom games, or coordinate strategies in the wave-based survival mode, Firefight: King of the Hill. Gather your team and seize the endless opportunities for cooperation and thrilling victories. Forge Beta: Unleash your creativity with a powerful Forge tool enhanced by a sophisticated visual scripting engine, mode editor, and improved fidelity. Create custom maps and game modes, whether reimagining iconic experiences or pioneering something new. The introduction of the AI Toolkit enables players to incorporate campaign AI into their designs, offering limitless creative possibilities.