According to foreign media PC Gamer reports, Valve's many games will launch Steam Deck optimization updates, the project covers games including "Counter-Strike: Global Offensive", "DOTA2", "Half-life" series and so on.

Several Valve game development teams were involved in the work, but the optimizations varied. DOTA2 has recently added an experimental gamepad gameplay feature that allows players to start playing with the Steam Deck in their hands. In addition, Counter-Strike: Global Offensive will also optimize the control experience of the controller.
To complement the Steam Deck, the Half-Life series will usher in a number of tweaks, including improvements to the navigation menu and other elements. All Half-Life titles will be updated, but the updates will not be released immediately.
Valve designers also said that the Portal series has adapted to Steam Deck and works well, and that It is possible that The Road to Survival 2 will be optimized. The design team intends to check all of Valve's games so that they can perform well on Steam Deck.