So our Linux builds are missing the executable. You can either:
-Copy your own export binary and rename it to "Poison Craft (Godot 3.1)"
-Grab the source code: https://github.com/organicpencil/godot-wild-3
-Use a late upload: https://github.com/organicpencil/godot-wild-3/releases/tag/v1.0
Same goes for MacOS, more or less.
PSA: The latter 2 are not the exact build that was uploaded last night. They contain 1 spelling fix.