Here is the full list of all 26 Help Will Come Tomorrow achievements.
Renegates have located your camp.
Kill one of the pursuers.
Meet Rasputin.
Find a talking wolf.
Finish the game with all survivors alive.
Finish the game with a good ending.
Build everything in your campsite.
Learn Grigorij's whole story.
Amputate a feet and a hand of one of the characters.
Learn Maria's whole story.
Save another train crash survivor.
Looks like you're kinda lonely...
Learn Anna's whole story.
Learn Aleksei's whole story.
Learn Dmitri's whole story.
Learn Edward's whole story.
Learn Siergiej's whole story.
Learn Wadim's whole story.
Learn Zofia's whole story.
Catch a fish.
Enter a cave and explore its dark corridors.
Hunt a moose.
Locate a package hidden by the woodcutters.
Survive a wolfpack attack on your camp.
Survive an encounter with a wolf during exploration.
Unlock all achievements.