Here is the full list of all 40 Beyond a Total Loss achievements.
Scare the shopkeeper.
Ask Alexandra an impertinent question.
Let dr. Crombie do his thing.
Look for a switch in the toilet.
Put the rubber duck into the pool.
You made a gimlet.
Not a single scientist has has been left alive in the lab.
You made your first dry martini.
You made a manhattan cocktail.
You made a moscow mule.
You made a u-boot.
You made a boilermaker.
You finished your first ordeal.
Finish the second ordeal.
Demand another ordeal.
Finish the third ordeal.
Finish the fourth ordeal.
Finish the fifth ordeal.
Finish the sixth ordeal.
Finish the seventh ordeal.
Get three pigs for Williamson.
"Lose" the liqueur.
Defeat the countess.
Return to the dark cave with a lantern.
Solve the poor widow's rat problem.
Kick a helmet into a bottomless pit.
Pet the dolphin with your foot.
Talk to the trickster under the desert.
Find the scientists in the village at night.
Happy family ending.
Relaxing vacation ending.
No lies ending.
Finish all seven ordeals.
Finish the game without having accepted the gun (normal difficulty).
Hang up the phone without talking seven times in a row.
Use the gross and slimy key.
Kick a knight to death (no moscow mules, normal difficulty).
Get on the other side of the treadmill without damaging the display.
Walk up to the upgrade device in the meditation room
Finish the prologue