Adding additional voiceovers or localized text can add several hundred megabytes.

This small size was revolutionary at the time. It allowed the entire campaign, all multiplayer maps, and the full soundscape (including the iconic Marty O’Donnell score) to fit in less space than a single level of a modern Call of Duty game. The reason for the efficiency? Low-resolution textures (by today’s standards), pre-baked lighting, and no 4K cutscenes.

Whether you’re preserving a piece of gaming history on a retro rig or blasting through the campaign in 4K on a gaming laptop, knowing the Halo Combat Evolved PC size helps you plan your storage, your bandwidth, and your nostalgia trip.

If you install the entire Master Chief Collection (Halo: Reach, CE, 2, 3, 3: ODST, and 4), the total size is (with high-res textures). Thus, Halo: CE alone represents roughly 20% of the full MCC install.

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