Here is the full list of all 35 Forgotten Hill First Steps achievements.
Complete the game without hints
Escape the clinic
Deliver all the marbles
Collect all documents
Win the bells game
Grow a new species
Kill the nurse
Get killed by a nurse
Get killed by an unknown creature
Get killed by a leech
Hassle the Gambler
Fix hydraulic system
Get killed by flies
A bad awakening
Use the grinder
Hassle Grandpa
Hassle the nurses
Prepare the medicine
Feed the fat guy
Position the marionette
Win the card games
Cut all posters
Play a new sound
Enter the theater
Get killed by a wolf, again
Exit the woods
Cut all trees
Enter the woods
Get killed by a wolf
Waste electricity
Fix electricity
Make a kid happy
Meet the home kid
Meet the home puppy
Move your First Step in Forgotten Hill