Allying

Visual
 Invitation Link Copy/paste this link to your friends. You will spawn near them.

Overview
Allying is becoming "friends" with other players. It allows for you to become immune from damage coming from your allies and unable to destroy a selection of buildings placed from your allies. You can invite your friends or be invited to a party with a link found at the top right corner at the main screen.

Advantages

 * You can play with your friends and still communicate via external sources so that other players won't see your messages.
 * Since the build limit only applies to one player, you can have more than 30 walls, 4 turrets, 8 spikes...
 * Things that would do damage to normal players don't damage you if it's coming from an ally.

Disadvantages

 * You spawn without immunity to damage.

Trivia

 * The button name at the main page is " TEAM WITH YOUR FRIENDS ".
 * The number after ?k= is the actual invite link to your friend, and the number after it is the number of the server.
 * The number of the invite can't be changed in-game. However, you can change it before pasting it.
 * The button next to the link automatically copies the link. Immediately after you press it, a little message above it will appear saying: Copied link!
 * Both the " OK " and " CANCEL " buttons close the pop-up, with no other purpose.

History

 * Unknown
 * You spawn without immunity when in a team
 * Unknown
 * The ability to invite players was added.