Zomcats Invasion is a 2D bird’s-eye-view shooter where you fight waves of zombie cats, alone or with others online. Killing Zomcats earns in-game cash for weapons, ammunition and opening doors; you can also barricade doors to hold them back.
Enemies grow stronger after each wave, and some waves bring random mutators that may help or hinder you. The game also offers different maps and difficulty settings, character classes with unlockable buffs, and cat cosmetics, including player-created designs for the Steam Workshop. It contains flashing lights.