Human Fall Flat

1. 
   Leap of Fail

   Complete "Mansion"
   79%
2. 
   Choo Choo!

   Complete "Train"
   68%
3. 
   Don't Get a Splinter!

   Complete "Carry"
   66%
4. 
   What Goes Up

   Complete "Mountain"
   61%
5. 
   Brute Force

   Complete "Demolition"
   52%
6. 
   Storm the Gate!

   Complete "Castle"
   40%
7. 
   Feet First

   Complete "Water" diving feet-first
   30%
8. 
   Head First

   Complete "Water" diving head-first
   3.5%
9. 
   The End?

   Complete "Power Plant"
   29%
10. 
    Speedrun 

    Complete the game start-to-end in one run
    1.8%
11. 
    No escape

    Fall and respawn once
    92%
12. 
    Pigeon Simulator

    Stand on the head of the statue in the intro
    4.5%
13. 
    Mind the gap!

    Take a big shortcut in the level "Mansion"
    7.9%
14. 
    Public service

    Place 5 pieces of debris in a dumpster
    2.3%
15. 
    Perfectionist

    Align a flipped bench with a wall
    2.4%
16. 
    It's stuck

    Jam a door and go through it in "Carry"
    14%
17. 
    Tower

    Stack all 4 boxes in the level "Carry"
    1.9%
18. 
    AH, EO, EO, EO, EO, OOOOO!

    Use the rope to go above the abyss in the level "Mountain"
    20%
19. 
    Silent hours (Noisy neighbours)

    Get rid of the speaker set in "Mountain"
    9.9%
20. 
    My treasure

    Collect all gems into a pile in "Mountain"
    3.1%
21. 
    Wrong direction

    Use the window on your left instead of smashing the wall in "Demolition"
    19%
22. 
    Surprise! (Avalanche!)

    Unleash the boulder gate in "Demolition"
    53%
23. 
    Primal

    Break 4 walls without using any gadgets in "Demolition"
    7.6%
24. 
    Improvised Ammo

    Launch yourself with the catapult in "Castle"
    58%
25. 
    For whom the bell tolls

    Ring the castle bell in "Castle"
    3.2%
26. 
    Zipline

    Zipline from the church tower in "Castle"
    2.4%
27. 
    Smooth moves

    Parkour fluidly from the alley to the blacksmith in "Castle" without touching the ground.
    1.5%
28. 
    Row, row, row your boat

    Use the row boat to get to the cargo ship in "Water"
    11%
29. 
    Reverse gear

    Enter the dock with the ship backwards in "Water"
    2.2%
30. 
    Beacon

    Light up the lighthouse in "Water"
    4.0%
31. 
    Breathing exercise

    In "Water", get out of the water in 100ms to avoid drowning
    30%
32. 
    Surfer

    Don't get wet while surfing down the mountain in "Water"
    9.8%
33. 
    Electricity 101

    Short-circuit the wires in "Power Plant"
    8.2%
34. 
    Will it fry?

    Feed an appliance with power from 3 batteries in "Power Plant"
    1.3%
35. 
    Delivery boy

    Deliver 10 pieces of coal to the main island in "Power Plant"
    23%
36. 
    Thief

    Steal the battery from the statue in "Power Plant"
    4.0%
37. 
    Tourist

    Travel 1km
    83%
38. 
    Traveler

    Travel 10km
    37%
39. 
    Adventurer

    Travel 25km
    15%
40. 
    Let it rain

    Respawn 100 times
    34%
41. 
    Trampoline

    Jump 1000 times
    56%
42. 
    Climber

    Climb 100m
    73%
43. 
    Heavy lifting

    Carry objects for a total of 1000m
    51%
44. 
    Learn to swim

    Drown 10 times
    52%
45. 
    Sail away!

    Use any of the boats to travel 1km
    41%
46. 
    Petrolhead

    Use any of the ground vehicles to travel 1km
    24%
47. 
    Convertible ride

    Ride 50m in a dumpster
    2.7%
48. 
    The End

    Complete "Aztec"
    24%
49. 
    Bird's eye view

    Climb to the top of the tree with the birds nest in “Aztec”
    4.4%
50. 
    Rollin'

    Walk on the rolling ball to bypass a puzzle in “Aztec”
    1.3%
51. 
    Clockwork

    Pass the pendulum obstacle course in 60 seconds in “Aztec”
    1.6%
52. 
    It's Alive!

    Complete "Dark"
    22%
53. 
    Tick Tock

    Climb the Clock Tower in 40 seconds in "Dark"
    1.0%
54. 
    Planks? No Thanks!

    Complete "Dark" without moving any planks that are barring doors
    1.1%
55. 
    Fry Me to the Moon

    Hold on to the EXIT lid after you flick the switch in "Dark"
    8.7%
56. 
    Under Pressure

    Complete "Steam"
    16%
57. 
    Walk the Plank

    Reach the big wheel in "Steam" without using the crane controls
    5.1%
58. 
    Get Dizzy

    Ride 3 complete revolutions of the big wheel in "Steam"
    2.8%
59. 
    Whoops!Secret

    Steam withholds the description of a secret achievement.
    15%
60. 
    Avalanche

    Complete "Ice"
    13%
61. 
    Tricky

    Complete the slope jump in "Ice" with 2 snowboards strapped to your feet
    2.2%
62. 
    No Ice Ice Baby

    Complete the seesaw puzzle in "Ice" without using an ice cube
    4.9%
63. 
    Taking the PisteSecret

    Steam withholds the description of a secret achievement.
    1.8%
64. 
    Candy Rush

    Zip line down from the mountain in "Christmas" using a candy cane
    2.9%
65. 
    Deck the Halls

    Land in the snow fort in "Christmas" on a snowboard
    1.9%
66. 
    Bah, Humbug!

    Shoot the Christmas angel off the tree top in "Christmas"
    2.0%
67. 
    Top the Hat

    Stand atop the large snowman's hat in "Christmas"
    1.2%
68. 
    Wrapped Up

    Complete "Thermal"
    6.0%
69. 
    Pay Day

    Complete "Thermal" while holding a gold bar
    1.1%
70. 
    Hook, Line and Jumper

    Enter the compound in "Thermal" without passing through the main gate
    2.1%
71. 
    Amped!

    Attach all electrical cables in 35 seconds or less in "Thermal"
    0.9%
72. 
    The Foreman

    Complete "Factory"
    7.0%
73. 
    Radio Silence

    Throw all four radios off the level in “Factory”
    0.8%
74. 
    After Hours

    Complete the first half of “Factory” without turning any lights on
    1.0%
75. 
    How to get Fired!

    Throw one of each item in the final room into the fire in “Factory”
    3.5%
76. 
    Hole in One

    Complete "Golf"
    8.7%
77. 
    Birdie

    Using ONLY the golf club, putt the ball in 3 strokes or less
    1.9%
78. 
    Bogey (1 Over Par)

    Take the alternate route above the cave
    2.1%
79. 
    Mulligan

    Drive the golf cart off the edge of the level
    6.6%
80. 
    Sports Fan

    Complete "City" level
    8.8%
81. 
    Tip-Top Ten Pin

    Complete all 4 bowling lanes
    2.9%
82. 
    Hitchhiker

    Ride one of the vehicles for 10 seconds
    1.7%
83. 
    Temper Tantrum

    Knock all 3 rag dolls off the level
    0.8%
84. 
    Lucky Carp

    Walk through the gates of the heavenly palace
    2.1%
85. 
    Zodiac

    Unite all 12 Zodiac heads
    4.2%
86. 
    Laojun’s Furnace

    Craft 3 different magical item in the golden furnace
    2.7%
87. 
    Fortune Tree

    Collect the Golden Sycees from the fortune tree
    1.8%
88. 
    Wrecking Crew

    Destroy the statue
    3.9%
89. 
    Toasty

    Light the marshmallows over the bonfire
    4.6%
90. 
    On Thin Ice

    Don't let the ice block melt
    3.6%
91. 
    Wrong Turn

    Complete "Forest"
    4.0%
92. 
    KABOOM!

    Complete “Laboratory”
    5.7%
93. 
    Bullseye

    Hit all targets without missing a single shot
    1.3%
94. 
    Cast it into the fire

    Throw an orb into the lava
    0.9%
95. 
    Overachiever

    Reach the exit door whilst holding an orb in the launch pad room
    2.6%
96. 
    The Great Outdoors

    Complete Lumber
    3.6%
97. 
    Safety first

    Use two hooks when crossing the chasm in Lumber
    0.7%
98. 
    Bedwetter

    Wet the bed in Lumber
    0.7%
99. 
    Lights out

    Throw the lanterns off the map
    0.6%
100. 
     Don’t blame it on the sunshine

     Turn on the jukebox in "Red Rock"
     0.7%
101. 
     Pipe dream

     Use the sewer to escape the junkyard on "Redrock"
     1.4%
102. 
     Pretty fly for a cacti

     Place the hat on the cactus in "Red Rock"
     0.7%
103. 
     Currently Attractive

     Complete "Red Rock"
     3.6%
104. 
     Out of the orbinary

     Go fishing in "Tower"
     1.4%
105. 
     Time saver

     Use the pipe to cross the lava in "Tower"
     0.9%
106. 
     Foot in the door

     Find a shorter route for moving the batteries in "Tower"
     2.4%
107. 
     Just walked in

     Complete "Tower"
     2.5%
108. 
     Small fish, big pond

     Complete "Miniature"
     3.2%
109. 
     Top Shelf

     Reach the highest platform above the power drill in "Miniature"
     1.0%
110. 
     Spotless clean

     Get rid of the ash in "Miniature"
     1.0%
111. 
     The floor is lava

     Starting from the bag of soil, reach the top of the crate without touching the red tiles in "Miniature"
     0.5%
112. 
     Square peg in a round hole

     Attempt to use an improvised battery in "Copper World"
     0.5%
113. 
     Unlimited Power!

     Form an independent laser loop in "Copper World"
     0.4%
114. 
     Loose change

     Throw all four hidden coins off the level in "Copper World"
     0.6%
115. 
     Cu later

     Complete "Copper World"
     1.8%
116. 
     Barrel of laughs

     Complete "Port"
     1.9%
117. 
     A call for aid

     Light the beacons in "Port"
     1.8%
118. 
     Spring cleaning

     Clear out the room directly after the zipline in "Port"
     0.4%
119. 
     To beach their own

     Reach the hidden island in "Port"
     0.3%
120. 
     Explorer of the Deep

     Complete "Underwater"
     2.1%
121. 
     Improvised Exploration Device

     Use the spring boards to get across the chasm in "Underwater"
     1.3%
122. 
     Subpar parking job

     Find the speed boat in "Underwater"
     1.1%
123. 
     Cove-r up!

     Go above the cave in "Underwater"
     0.8%
124. 
     Ship it

     Complete "Dockyard"
     1.3%
125. 
     Olympic Grandeur

     In "Dockyard", use the chains to swing directly to the window
     0.3%
126. 
     Shattered Dreams

     Smash all the glass in "Dockyard"
     0.3%
127. 
     Seas the day

     Reach the hidden boat in "Dockyard"
     0.3%
128. 
     Exclusive Tour

     Complete "Museum"
     1.8%
129. 
     Buckshot

     Destroy the wall by firing all 5 cannon balls at once in "Museum"
     0.5%
130. 
     Laser Accurate

     Avoid all security lasers in "Museum"
     0.2%
131. 
     Eye Spy

     Find the three hidden eye symbols in "Museum"
     0.2%
132. 
     A Leisurely Stroll

     Complete "Hike"
     1.2%
133. 
     Human Thawed Flat

     Free the cardboard cutout in "Hike"
     0.3%
134. 
     Speed Skating

     Complete three laps around the glacier in 60 seconds in "Hike"
     0.2%
135. 
     Prepared for winter

     Roll the barrel inside the cellar in "Hike"
     0.3%
136. 
     Sweet Dreams

     Complete "Candyland"
     1.7%
137. 
     Stay Puft

     Get a marshmallow from the tree in "Candyland"
     0.2%
138. 
     Route Canal

     Avoid hitting any donuts in chocolate river in "Candyland"
     0.2%
139. 
     Dodgeball

     Avoid all of the rolling balls in "Candyland"
     0.2%
140. 
     Test Complete

     Complete "Test Chamber"
     0.5%
141. 
     Half-baked puzzle

     Find the cake in "Test Chamber"
     0.2%
142. 
     Need to vent

     Go through all the ventilation shafts in "Test Chamber"
     0.2%
143. 
     Hope that wasn't important

     Recycle the cube blueprints in "Test Chamber"
     0.2%
144. 
     Full steam ahead

     Complete "Steampunk Party"
     0.6%
145. 
     Party Animal

     Start the party in "Steampunk Party"
     0.1%
146. 
     Let off some steam

     Find and turn the hidden valves in "Steampunk Party"
     0.1%
147. 
     Bellhop

     Ring the bell in "Steampunk Party"
     0.2%
148. 
     A fjord-midable adventure

     Complete "Viking"
     0.6%
149. 
     Go with the flow

     Reach the island on the river in "Viking"
     0.3%
150. 
     Practice makes perfect

     Hit all dummies with a sword in "Viking"
     0.1%
151. 
     Cheaters never prosper

     Destroy the cheat sheet rune in "Viking"
     0.1%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 151 of them.