Is it still a gag if you actually make the thing?
That means Robinson-Yu is planning on keeping his server live for only two weeks.
As other tweets explain, this isn’t a battle royale mode.

Still, the reason I love A Short Hike is that it’s a lovely place to hang out.
It’s nice to hang out in it with other people.
Eventually one of us flies off a ledge and we go our separate ways.
If you then load up and start a game, you’ll connect automatically to the multiplayer server.