Every member of Future UK has been put on a 45-day consultation period and games website Computerandvideogames.com faces closure, sources close to Future's management have told MCV.
Mass changes will happen across the board, with big alterations also being made to Total Film as well as other future games website.
MCV understands Kotaku UK, PC Gamer and Gamesradar will be safe under current plans, although that may change.
In an email to staff Future boss Zillah Byng-Maddick said that Future's business model was not 'working hard enough' and admitted 'we need to change and fast.'
The news follows a string of poor financial results, including a profit warning in March which caused the firm's share price to plummet.
Future boasts almost 900 staff and its games publications includes CVG, Edge, Gamesmaster, Gamesradar, Official Xbox, Official PlayStation and Official Nintendo. It also runs the Golden Joystick Awards and operates the UK arm of Kotaku.