Here is the full list of all 26 Adam Wolfe achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Fire a gun for the first time
Complete all episodes
Finish 4 mini-games without skipping
Finish any mini-game in less than 1 minute
Find 3 items in 3 seconds in a Hidden Objects Puzzle
Finish any Hidden Object Puzzle in less than 4 mis-clicks
Complete a Hidden Object Puzzle in less than 2 minutes
Complete all Hidden Object Puzzles without using hint
Complete Episode 1
Complete Episode 2
Complete Episode 3
Complete Episode 4
Perform your first evidence deduction mini-game
Perform your first reenactment
Survive the inferno
Dig yourself out of a grave
Solve case about San Francisco fires
Open the mysterious box
Survive your own death
Hand someone a cure
Discover the true identity of a ghost
Look at all of Lisa's paintings
Shoot yourself in the chest
Visit all of the Amanda's statues
Visit a circus
Reunite with Allie Wolfe