Here is the full list of all 32 Umbra: Shadow of Death achievements.
Completed the game and died less than 20 times! Outstanding!
Completed the game and used less than 5 hints to solve the puzzles.
Completed the game and died less than 40 times! Excellent!
Completed the game and died less than 60 times! Well done!
Completed the game without using any hints at all. You clever so-and-so...
Crashed the truck less than 5 times! Good skills!
Crashed the truck no more than 10 times!
No one can hear you scream when you're in oblivion.
You gave freedom to an imprisoned kid - well done!
Against all of the odds, you stuck to it and finished the game - well done!
You demonstrated determination and skill by shooting down 2 UFOs! This is almost impossible!
Nice shooting - you shot down a UFO!
Finished level 6.
An achievement of gravity-defying proportions. Completed in a monster truck, no less!
Finished level 5.
It's been a long and difficult journey, but now it's almost at an end - you found your sister!
It's not every day that you get to jump a bridge like that! Awesome!
You seem to enjoy killing yourself - you died more than 100 times!
Get some air in a monster truck!
Finished level 4.
Representing determination beyond reason.
Excellent problem solving topped by a leap into the unknown.
Finished level 3.
Saved the imprisoned children. This is a special award for cunning and determination. Well done!
This puzzle was particularly challenging - well done!
Finished level 2.
A different kind of roller-coaster - and you owned it!
Avoided an onslaught of bullets.
Finished level 1 and made it under-ground.
You weren't put off by the rotting torso... Well played!
Figured out how to swing on and jump off a rope. It's harder than it sounds!
You successfully negotiated the first obstacle - well done!