Valve's testing indicates Half-Life 2: Update
on Steam Deck. This game is functional on Steam Deck, but might require extra effort to interact with or configure.
Some functionality is not accessible when using the default controller configuration, requiring use of the touchscreen or virtual keyboard, or a community configuration.
This game sometimes shows mouse, keyboard, or non-Steam-Deck controller icons.
Some in-game text is small and may be difficult to read.
This game's default graphics configuration performs well on Steam Deck.