# Call of Duty studio Sledgehammer reportedly worked on a Halo multiplayer prototype before it got canned

> **Newsylist Open Intelligence Dossier** · First detected: 2026-08-17 12:29 UTC · Category: Technology · Sources: 4 · Current Velocity: 2

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| KitGuru | Microsoft reportedly considering Sledgehammer Games for new Halo project | 2026-08-17 10:11 | [Source Link](https://news.google.com/rss/articles/CBMiuwFBVV95cUxPS2dXQmhiSlQ5V0xUOW5oX05JY0d4c3N6ZkNzUnB5TDNNRk9aYmRHbk1TbnBNZTZBOWhfRFFNM0dHUmUtdGtpUThXbVBhOHF4dE85Z0VfLVItV2ptbW9wcG9Ga2RjY3hpaEFleHNwUHJZMEItVjYxZUZKaC1JRlE3S3hsYTk5aTRIMXhNWVVSZGZaV1d5V0lzTURmQVRxd1lQdUhyVnpob09fMDZPYXczQXhBaHNUcDFZcE1v?oc=5) |
| player.one | New 'Halo' Multiplayer Game From Sledgehammer Games Reportedly Canceled Last Month—Why? | 2026-08-17 10:11 | [Source Link](https://news.google.com/rss/articles/CBMirAFBVV95cUxOTTJGRE1lU0JYazdlX2lBUjc4TVVRNGRFLVVHYXpRY3RxWTBtcGVISXNsX1IwN29rcHBFYXJyd0sxZTZtUFFpTWhTMTJ3bVZ6djlwSjl2dllJMkx3b0U4RUVPWXg4dEItRXFIb0tOT0drNUFsWUdBTGRiT0cwRlJQQlh4Z19OaDdNalZZRUNKMDYxeU9fT2xZU3pEaFFtVXBudnZYMkc3UG5vRnQx?oc=5) |
| Metro.co.uk | Call Of Duty studio rumoured to help out with new Halo games | 2026-08-17 10:11 | [Source Link](https://news.google.com/rss/articles/CBMijwFBVV95cUxNc0U1VDgtM1hkQnlpMFA0ZWhRQkszLWZPcHhjM0NpLUlsb3NGeGx2WDZpVE4tUWc0ZkVLSlFReFpqT1JJOWlCVUxXMFg4RUFtNmhSRkxFQnZzd0pxMnE0S3RiZ3lwcDZjaDF6enU0MkxucWViUDhyS3JBdkZ1dEl1NUE4bmQwYW1ZeTBNR0VNb9IBlAFBVV95cUxQOGVuNVU0SzJranVOOE1xY1FwNW01ZFRhQkhOUEpOdFpPZVVRM29LcUR0VzhROTUyek9NS21acVZMTHVLQUtMR2JFNG96aWx0YXVleWVIX3JZdDhMbTR1YmFDZ2NsYzBHZVhZXzJEdnY5cDJhV3lnWWIxQlBCWnZ0akNFWFp1NTZRQ3N6T1dvX0UyczVG?oc=5) |
| playfront.de | Halo in a modular system: Is Activision developing its next multiplayer project? | 2026-08-17 10:11 | [Source Link](https://news.google.com/rss/articles/CBMipwFBVV95cUxPbWJYRGlSNmRCdjF5NW1ZZHZRMjd0Z25ldWJta3dQanJUM25wb3k3MzRFaWJFVTFfQVA3VFd2WnVzSkM1eHZ0YnFEZGM0U3lJdHFpNTVyek83WEdOYkVlbHZiMFN3TTlTNTdMQUNZRV96cUYyMXAwekxSMWdFQWJpT0N2dnhmVDZlM2VpajBQYjJyMGozTWNpNlVPZ1lleTkzM0ZsbFlXNA?oc=5) |

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*Canonical Source: https://www.newsylist.com/trend/2026-08-17/call-of-duty-studio-sledgehammer-reportedly-worked-on-a-halo-multiplayer*
*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*