HalfLife is one of the giant monuments of the entire FPS industry, and until now, it is still being chosen by many people. Because it is a great monument, it is not uncommon that there are so many titles learned to launch their products. One of the most successful HalfLife games on mobile platforms is Critical Ops – FPS Game for phones. It was once a web game before it was released on mobile platforms, but when it realized the appeal of mobile platforms, in 2016, the game was released. This game quickly resonated and became one of the best FPS games on mobile platforms.