Will-o'-the-Wisps updated

by mk-fg
A glowing enigmatic life form was found to inhabit alien forests at night. Based on the original mod by Betep3akata. Not tested in multiplayer.
8 days ago
0.16 - 0.17

See trashed threads for resolved one-off bugs.
When reporting bugs like lua crashes, be sure to include full text or screenshot of error, rough steps to reproduce or at least what was happening in the game at the time.
Note that you can also report any issues to mod thread on factorio forums or github.