Good news, all! Recently, Valve's Steam Deck review team have checked out Half-Life Legacy and have marked it as Playable - which means while there are certain caveats such as the keyboard not auto-appearing, and missing button glyphs, you can play HLL from start to finish on the Steam Deck device.

Of course, we did communicate this confidently beforehand, but for Valve to be effectively saying it themselves means a lot to me and the rest of the team. Thanks, Steam Team!

One of our goals for an upcoming update is to make HLL even more Steam Deck friendly so that hopefully we can get that Verified status sometime in the future - for now though, this is just the start!

Sabian Roberts

Co-founder of The Phoenix Project Software

2026-02-24

P.S. we have observed numerous recent reports of the cart in Anomalous Materials not being pushable and will therefore soon be restoring the FPS-lock that was originally present in 1.5. This is not an issue we can directly remedy at the moment as some physics code is engine-side, which we don't have access to.