Full list of all 99 Purrfectly Hidden Cats - Kittenrock achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Open all the curtains.
Unlock all achievements.
Check all catflaps.
Check all trash bins.
Check all big plant pots.
Check all tree holes.
Knock all barrels.
Sample all campfire cooking.
Watch all birds.
Pet all wild animals.
Check all ground holes.
Listen to all humans.
Find robot and frog.
Find Botticelli.
Check all bird houses.
Read all posters.
Pet Moss.
Pet all purple cats.
Pet all cats.
Pet Clover.
Open all tents.
Pet Nectar.
Pet Pine.
Pet Olive.
Pet Ruby.
Pet all orange cats.
Pet Twillight.
Pet Orion.
Pet Oakley.
Pet Storm.
Pet Poppy.
Pet Leaf.
Pet Lark.
Pet Luna.
Pet Opal.
Pet Wren.
Pet Raven.
Pet Koda.
Pet Juniper.
Pet Fern.
Pet Willow.
Pet Echo.
Pet Dawn.
Pet Sapphire.
Pet Whisker.
Pet Ivy.
Pet Karen.
Pet Spruce.
Pet Snow.
Pet River.
Pet Star.
Pet Frost.
Open all backpacks.
Ring all doorbells.
Pet Misty.
Pet Sunny.
Pet Professor.
Tap all fire hydrants.
Pet Zephyr.
Pet Fjord.
Pet Forest.
Pet Pip.
Check all crates.
Pet Ginger.
Pet Garnet.
Pet Sierra.
Pet Sky.
Pet Comet.
Pet Sage.
Pet Cliff.
Pet Rowan.
Pet Meadow.
Pet Ziggy.
Pet Thistle.
Pet Ember.
Pet Birch.
Pet Rascal.
Pet Rose.
Pet Cedar.
Pet Cherry.
Pet Flint.
Pet Mocha.
Pet Sparrow.
Pet Cobalt.
Pet Amber.
Pet Rocky.
Pet Bailey.
Pet Blaze.
Pet Daisy.
Pet Aspen.
Pet Velvet.
Pet Pebble.
Pet Marigold.
Pet Maple.
Pet Tundra.
Pet Snooze.
Pet Summer.
Pet Breezy.
Pet Crystal.