When you need to call down the thunder to deal with those pesky biters, launch a rocket with an ion cannon into orbit and show the bugs who's boss.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Maybe it's just me but i had to rename the file, cause it downloaded as "Orbital%20Ion%20Cannon_1.6.0.zip" and i got error at launch. I just renamed to "Orbital Ion Cannon_1.6.0.zip" and it will work.
Hmm, seems to be a problem with the mod portal itself improperly renaming the file, nothing I can do to fix it.
EDIT: Seems to also be related to browser: https://forums.factorio.com/viewtopic.php?f=23&t=56101
In any event, using the in-game mod portal interface does not have this problem.
Try to remove the spaces from the file name. It will prevent browsers to replace them with %20
Trytoremovethespacesfromthefilename.Itwillpreventbrowserstoreplacethemwith%20
Ithinkwhitespaceisanintegralpartofcommunication,soIdon'tseewhyIshouldbeforcedtoremoveitjustbecauseaprogramorwebsitecan'tparseitcorrectly.