Here is the full list of all 25 Blair Witch achievements.
Help Ellis to get his redemption.
End the game without killing any monsters
Find out what happened to Peter.
Let Bullet bring you 10 things
Find out what happened to Bullet.
Collect all wooden dolls.
Collect all victim's photos.
Collect all of the psychiatrist's notes.
Patch things up with Jess.
Pick up all the trash.
Let the VA know about the lumberjack's death.
Collect all dog tags of the fallen comrades.
Pay your respects to sheriff Lanning.
Score 40 points in Cobra.
Become Carver
Break 10 totems.
Kill 10 monsters.
Collect the first dog tag.
Walk 100 miles...
Kill your first monster.
Collect the first victim's photo.
Pet the dog
Make the pizza guy lose it.
Collect the first wooden doll.
Collect the first psychiatrist's note.