Here is the full list of all 17 Adam's Venture Episode 1: The Search For The Lost Garden achievements.
Find the Gate of Eden secret
Talk to Digger
Blow up the rocks
Find all seven missing pieces
Explore Faith, Hope and Love
Find the hidden key
Endure a long climb
Solve the final puzzle
Try opening the gate of Eden
Watch it, watch it all!
Complete the full game
Find the Faith, Hope, Love secret
Find the Leap of faith secret
Find the A Full Spectrum secret
Find The Lion and the Snake secret
Find the Sound Belief secret
Find the Full Circle secret