Cat Invasion

"'There are cats in your house...'"The Cat Invasion (Also referred to as the House Invasion) is a War Mode event in which unique Cat enemies spawn and attempt to kill the player, with the goal of taking over their house. It is commonly regarded as one of the most difficult events in the game, as Cats can easily overwhelm unprepared players.

It has a random chance of occouring at any particular dawn, if the criteria stated below are met.

Criteria
The criteria for the Cat Invasion to occour are as follows:
 * The moon lord has been defeated at least once.
 * No other event is occouring.
 * The player has at least one suitable housing.

Tips

 * It's recommended to use a Trifold Map or one of its upgrades, as Cats have a chance to inflict the player with the Confused status effect.
 * Using a Ball of Yarn can greatly increase the player's survivability, as the cats will target it instead of the player.