The intricacy and allure of online slots increased along with technological advancements. A major turning point occurred in the late 1990s with the arrival of srummy earnoftware providers like Microgaming and NetEnt. These businesses started creating increasingly complex games with improved sound effects, animations, and graphics. Traditional slots were unable to captivate players in the same way that immersive themes and storylines made possible by the switch from 2D to 3D graphics.