Black Ops 7 Multiplayer, Zombies Free on Xbox March 5 to 9

Call of Duty: Black Ops 7 opened its Multiplayer and Zombies modes for free from March 5 to March 9 as both Activision’s cross‑platform Free Trial and part of Microsoft’s Xbox Free Play Days weekend. Xbox’s Free Play Days lineup for the March 5–9 window included Call of Duty: Black Ops 7 alongside Sonic Racing: CrossWorlds, FBC: Firebreak and Black Desert, and Xbox noted that some titles in the slate require Game Pass subscriptions while others are open to all Xbox players.

The Call of Duty Free Trial page spells out what players can jump into: "For a limited time from March 5th to March 9th, play Multiplayer and Zombies content in Call of Duty®: Black Ops 7 for FREE." The trial, the site says, includes "more than 25 Multiplayer maps, including fan‑favorite Nuketown, plus new Season 02 maps, Torment, Sake, Nexus and the remastered Black Ops 2 classic Slums. In Zombies, survive against the hordes in the new Mars Survival map, two Round-Based Zombies Maps, the new Cursed Survival mode, and more."

Access specifics split between platforms. Microsoft's Free Play Days messaging confirms "Call of Duty: Black Ops 7 and FBC: Firebreak are free to all Xbox players during the event," while "Sonic Racing: CrossWorlds and Black Desert require Xbox Game Pass Ultimate, Premium, or Essential membership to access." Xbox also highlighted that "Achievements and Gamerscore earned during free trials carry over if games are purchased after the event ends," a key point for completionists tracking progress.

Third‑party coverage and Activision pages made a cross‑platform note explicit: one report called the Free Trial "now live on all platforms including Xbox One and Series X|S," and the Call of Duty site itself presents a platform chooser and region selector, showing the promotion on Xbox, PlayStation and PC. Product metadata on Xbox listings also identifies Black Ops 7 as optimized for Xbox Series X|S with Smart Delivery for cross‑generation players.

A practical access detail from the Call of Duty site may affect some players: "A mobile phone number may be required to be linked to your Activision account to play Call of Duty®: Black Ops 7." The Free Trial page also displays developer and publisher credits, including Activision, Treyarch, Sledgehammer Games and others, and carries the 2026 Activision Publishing, Inc. copyright line.

This March weekend is not the first time Activision has run a limited free access period for Black Ops 7. Activision and Xbox previously unlocked Multiplayer and Zombies content during December free access windows that lasted into late December, and Xbox Free Play Days has historically rotated in titles such as Fallout 76 and NBA 2K26. For players who jump in this March, the clearest takeaway is practical: you can test more than 25 maps and the new Zombies modes for free March 5–9, and any Gamerscore or achievements earned should transfer if you buy the full game after the event ends.