Source Core Rulebook pg. 634 4.0
A mindless creature has either programmed or rudimentary mental attributes. Most, if not all, of their mental ability modifiers are –5. They are immune to all mental effects.


Adamantine Golem, Afziaka Brute, Afziaka Stalker, Alchemical Golem, Aluum Enforcer, Amoeba Swarm, Animated Armor, Animated Broom, Animated Colossus, Animated Furnace, Animated Silverware Swarm, Animated Statue, Animated Trebuchet, Arboreal Snag, Assassin Vine, Basidirond, Beetle Carapace, Black Pudding, Blood Ooze, Capstan Swabbie, Carnivorous Blob, Carnivorous Crystal, Carrion Golem, Chattering Jaws, Chromatic Ooze, Clacking Skull Swarm, Clay Golem, Clockwork Amalgam, Clockwork Assassin, Clockwork Brewer, Clockwork Buccaneer, Clockwork Cannoneer, Clockwork Clock Tower, Clockwork Disposer, Clockwork Door Warden, Clockwork Dragon, Clockwork Fabricator, Clockwork Handler, Clockwork Hunter, Clockwork Mage, Clockwork Puppeteer, Clockwork Soldier, Clockwork Sphinx, Clockwork Spy, Crawling Slurry, Dig-Widget, Divine Warden Of Brigh, Divine Warden Of Nethys, Dragon's Blood Puffball, Drake Skeleton, Ethereal Sailor, Feral Skull Swarm, Fire Jellyfish Swarm, Flaming Skull, Flesh Golem, Fleshforged Dreadnought, Floating Femur, Fossil Golem, Fuming Sludge, Gelatinous Cube, Giant Amoeba, Giant Animated Statue, Giant Flytrap, Giant Jellyfish, Glass Golem, Glimmervine, Gray Ooze, Grothlut, Gunpowder Ooze, Harpy Skeleton, Ice Golem, Iron Golem, Lemure, Living Sap, Luminous Ooze, Mechanical Carny, Mithral Golem, Necrophidius, Obsidian Golem, Ochre Jelly, Phalanx Of Phalanges, Plague Zombie, Pyronite Ooze, Quantium Golem, Reaper Skull Puffball, Rime Sludge, Roiling Incant, Rotbomber, Rust Ooze, Scrabbling Ribcage, Seetangeist, Severed Head, Sewer Ooze, Shadowforged Guardian, Shambler Troop, Shock Zombie, Skeletal Giant, Skeletal Horse, Skeletal Hulk, Skeletal Soldier, Skeletal Titan, Skeleton Guard, Skeleton Infantry, Skinskitter, Skinstitch, Slime Mold, Slithering Pit, Snapping Flytrap, Soul Slime, Spiral Centurion, Spiritbound Aluum, Stone Golem, Sulfur Zombie, Swordkeeper, Tallow Guardian, Tallow Ooze, Tar Ooze, Tar Zombie Mammoth, Tar Zombie Predator, Tar Zombie Snatcher, Tattoo Guardian, Terrorguard, Tyrannosaurus Skeleton, Unseen Servant, Vaultbreaker Ooze, Verdurous Ooze, Violet Fungus, Vitalia, Weykoward, Wizard Sponge, Wolf Skeleton, Wood Golem, Yeast Ooze, Yellow Musk Brute, Yellow Musk Creeper, Yellow Musk Thrall, Zombie Brute, Zombie Dragon, Zombie Hulk, Zombie Mammoth, Zombie Owlbear, Zombie Shambler, Zombie Snake