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.
Collect all victim's photos.
Collect all of the psychiatrist's notes.
Collect all wooden dolls.
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.
Let Bullet bring you 10 things
Make the pizza guy lose it.
Score 40 points in Cobra.
Become Carver
Find out what happened to Bullet.
Patch things up with Jess.
Break 10 totems.
Kill 10 monsters.
Walk 100 miles...
Collect the first dog tag.
Kill your first monster.
Pet the dog
Collect the first wooden doll.
Collect the first psychiatrist's note.
Collect the first victim's photo.