The popularity of controllers is growing on Steam. According to Valve's estimates, the average daily usage of controllers has tripled over the past six years — from 5% to 15%.
Valve did not disclose how many people play with controllers. Instead, it mentioned that Steam now supports over 300 controller models, with Xbox gamepads being the most popular, used in 59% of gaming sessions with controllers. PlayStation controllers come in second place (26% of sessions), and the portable PC Steam Deck rounds out the top three (10% of sessions).
Valve also noted that the Steam input system is used in 42% of sessions with controllers.