I get an "Error: spawn EACCES" dialogue every time I try to launch the game, so I haven't been able to play it. I installed through the client. Not sure what the issue is but I'll try again if you put out another update!
Since Epic Games has an EULA every time install a `game made with there engine` we did not included the files separately to launch directly. Please go to the folder where [itch application downloads the file] and manually install running the setup.
Another alternative now is to wait for our Steam demo release in the next couple of days, since steam has an integrated EpicGames EULA you can launch directly.