Hong Kong shares rallied in line with world markets on Wednesday thanks to a surge in tech firms fuelled by suggestions China's overhaul of the sector could be coming to an end.

The Hang Seng Index climbed 2.24 percent, or 482.92 points, to 22,014.59.

The Shanghai Composite Index rose 0.68 percent, or 22.03 points, to 3,263.79, while the Shenzhen Composite Index on China's second exchange added 0.52 percent, or 10.84 points, to 2,083.42.

China has approved the release of dozens of new video games, sending the shares of some of its biggest tech firms soaring. (AFP)