Full list of all 115 Human Fall Flat achievements worth 3,400 gamerscore. It takes around 8-10 hours to unlock all of the achievements in the base game.
The base game contains 47 achievements worth 1,000 Gamerscore, and there are 17 DLC packs containing 68 achievements worth 2,400 Gamerscore.
Enter the dock with the ship backwards in "Water"
Use the row boat to get to the cargo ship in "Water"
Complete the game start-to-end in one run
Travel 25km
Complete "Water" diving head-first
Don't get wet while surfing down the mountain in "Water"
Parkour fluidly from the alley to the blacksmith in "Castle" without touching the ground.
Respawn 100 times
Complete "Power Plant"
Deliver 10 pieces of coal to the main island in "Power Plant"
Steal the battery from the statue in "Power Plant"
Feed an appliance with power from 3 batteries in "Power Plant"
Use any of the ground vehicles to travel 1km
Short-circuit the wires in "Power Plant"
Complete "Water" diving feet-first
Drown 10 times
Light up the lighthouse in "Water"
Travel 10km
Use any of the boats to travel 1km
In "Water", get out of the water in 100ms to avoid drowning
Carry objects for a total of 1000m
Place 5 pieces of debris in a dumpster
Zipline from the church tower in "Castle"
Jump 1000 times
Complete "Castle"
Ring the castle bell in "Castle"
Jam a door and go through it in "Carry"
Use the window on your left instead of smashing the wall in "Demolition"
Get rid of the speaker set in "Mountain"
Stack all 4 boxes in the level "Carry"
Ride 50m in a dumpster
Align a flipped bench with a wall
Stand on the head of the statue in the intro
Take a big shortcut in the level "Mansion"
Launch yourself with the catapult in "Castle"
Complete "Demolition"
Break 4 walls without using any gadgets in "Demolition"
Unleash the boulder gate in "Demolition"
Complete "Mountain"
Use the rope to go above the abyss in the level "Mountain"
Collect all gems into a pile in "Mountain"
Climb 100m
Travel 1km
Complete "Carry"
Complete "Train"
Complete "Mansion"
Fall and respawn once
Pass the pendulum obstacle course in 60 seconds in “Aztec”
Climb to the top of the tree with the birds nest in “Aztec”
Complete "Aztec"
Walk on the rolling ball to bypass a puzzle in "Aztec"
Climb the Clock Tower in 40 seconds in "Dark"
Complete "Dark"
Complete "Dark" without moving any planks that are barring doors
Hold on to the EXIT lid after you flick the switch in "Dark"
Complete "Steam"
Ride 3 complete revolutions of the big wheel in "Steam"
Break the ladder in "Steam"
Reach the big wheel in "Steam" without using the crane controls
Complete 1 complete revolution on the ski chairs in "Ice"
Complete the seesaw puzzle in "Ice" without using an ice cube
Complete "Ice"
Complete the slope jump in "Ice" with 2 snowboards strapped to your feet
Complete "Thermal" while holding a gold bar
Attach all electrical cables in 35 seconds or less in "Thermal"
Enter the compound in "Thermal" without passing through the main gate
Complete "Thermal"
Complete Forest
Don't let the ice block melt
Destroy the statue with the bulldozer
Burn a marshmallow over the bonfire
Complete the first half of “Factory” without turning any lights on
Complete "Factory"
Throw all four radios off the level in “Factory”
Throw one of each item in the final room into the fire in “Factory”
Reach the exit door whilst holding an orb in the launch pad room
Complete “Laboratory”
Hit all targets without missing a single shot
Throw an orb into the lava
Take the alternate route above the cave
Using ONLY the golf club, putt the ball in 3 strokes or less
Complete "Golf"
Drive the golf cart off the edge of the level
Knock all 3 rag dolls off the level
Complete all 4 bowling lanes
Complete "City" level
Ride one of the vehicles for 10 seconds
Complete Lumber
Throw the lanterns off the map
Use two hooks when crossing the chasm in Lumber
Wet the bed in Lumber
Complete "Redrock"
Turn on the jukebox in "Red Rock"
Place the hat on the cactus in "Red Rock"
Use the sewer to escape the junkyard on "Redrock"
Complete “Tower”
Find a shorter route for moving the batteries in "Tower"
Use the pipe to cross the lava in "Tower"
Go fishing in "Tower"
Complete “Miniature”
Starting from the bag of soil, reach the top of the crate without touching the red tiles
Get rid of the ash in “Miniature”
Reach the highest platform above the power drill in "Miniature"
Throw all four hidden coins off the level in "Copper World"
Attempt to use an improvised battery in "Copper World"
Complete "Copper World"
Form an independent laser loop in "Copper World"
Complete "Port"
Light the beacons in "Port"
Clear out the room directly after the zipline in "Port"
Reach the hidden island in "Port"
Complete "Underwater"
Go above the cave in "Underwater"
Use the spring boards to get across the chasm in "Underwater"
Find the speed boat in "Underwater"