The thought of packing A Short Hike with other players is entirely counter to the ethos of the game — which is what makes the PC mod A Short Hike 99 so wonderfully chaotic.
The page details how to download and install A Short Hike 99 on Steam, as well, using the “betas” tab.
See up to 99 other players as they hike Hawk Peak A Short Hike is an exceptional game about a bird going on a nature hike.
The mod isn’t going to be a long-term implemented change, and is instead “a fun experiment,” according to the page.