Without any doubt, the early part of the 21st century has witnessed an exponential increase in PC graphical grunt, to produce not only great gameplay, but eye-catching visuals.

Increase in Action Games Development in 21st Century

You should consider full version Battlefield and Call of Duty, which came out on PC and now have become some of the most profitable multi-platform franchises.

People started playing out some of the most successful action game franchises on PC.