They even did a bunch of work on Half-Life recently for its 25th anniversary [1], including adding Steam Deck support and fixing long-standing bugs -- but that

They even did a bunch of work on Half-Life recently for its 25th anniversary [1], including adding Steam Deck support and fixing long-standing bugs -- but that didn't extend to making it run on any modern macOS system. [1]: https://www.half-life.com/en/halflife25/ https://www.half-life.com/en/halflife25/