Does Portal Knights require an internet connection to play? July 12, 2020 18:50 No, Portal Knights does not require an internet connection to play once all the files are downloaded from the store. Related articles I already own Terraria. Why am I being asked to repurchase it on the Google Play store? What can I do about lag and disconnects while playing multiplayer games over Wi-Fi? Will ‘Players on different islands’ be supported in the mobile edition of Portal Knights? How can I reduce lag in the Google Play version of Portal Knights? How do I host a local multiplayer game in Portal Knights on mobile?