Marathon download & install size
Marathon needs roughly ~23 GB, and the exact size varies by platform (see the table below).
| Platform | Download / install size |
|---|---|
| PS5 | ~23 GB |
| Xbox Series X|S | ~24-25 GB |
| PC (Steam) | ~18-20 GB |
Will it fit on your console? (25 GB)
| Console | Usable storage | Free after install |
|---|---|---|
| PS5 | 667 GB | ✓ +642 GB |
| Xbox Series X | 802 GB | ✓ +777 GB |
| Xbox Series S | 364 GB | ✓ +339 GB |
How long to download? (25 GB)
| Connection | Estimated time |
|---|---|
| 25 Mbps | 2.2 hours |
| 100 Mbps | 33 min |
| 500 Mbps | 7 min |
At full line speed — real-world downloads are usually a bit slower.
Sources · Last verified: July 24, 2026.
Online-only game, so the whole install is the shared multiplayer client. Sizes vary slightly by platform and by the number of installed languages, and Bungie noted the install size was not fully 'frozen' at launch and will grow with seasonal updates. On PC the download unpacks/decrypts during install, so temporarily you need noticeably more free space than the final footprint. Figures cross-checked across Sportskeeda, Shacknews and Keengamer.
Marathon — frequently asked
How big is the download?
Roughly 20 GB, varying by platform (about 23 GB on PS5, 24-25 GB on Xbox, 18-20 GB on PC). Install size can grow with seasonal updates and installed languages, and PC needs extra temporary space to decrypt during install.
Sources
- Bungie Press Room — Marathon releases March 5 (platforms, crossplay)
- Wikipedia — Marathon (2026 video game)
- Steam — Marathon store page
- Turtle Beach — Marathon system requirements (min/rec specs)
- PCGamesN — Marathon system requirements
- Sportskeeda — Marathon preload / file size by platform
- Shacknews — Marathon pre-load & install size
- PowerPyx — Marathon Trophy Guide & Roadmap
- PlayStationTrophies.org — Marathon trophy list (14 trophies)
- Tom's Guide — Marathon review (playtime)
- Deltia's Gaming — Do you need PS Plus to play Marathon?
- Kotaku — Marathon guide: seasons, price, crossplay, progression
- Last verified: July 24, 2026. Sizes and specs can change with patches — tell us if something is out of date.