Here is the full list of all 40 Lakeview Cabin Collection achievements.
Beat Lakeview Cabin VI with everyone alive and 10 NPCs saved.
Wear all five masks at the same time
Beat all four episodes
Save at least 15 crew members
Beat Lakeview Cabin III with everyone alive
Push the bed to the limit
Redemption
Beat the Minisode "Last Christmas"
Save the poor soul
Tragedy
Burn the enemy to crisp.
Collect all records
Kill the barn inhabitant
Get to the attic without raising the alarm.
See the family portrait
Get the dog to survive till the end
Throw a friend into the woodchipper
Defeat the sewer monster
Kill 30 zombies in one run
Get three of your friends to "return"
Drop the windvane on an enemy
Finish the game with everyone missing a leg
Hack up your friends
Beat Lakeview Cabin IV with everyone alive
Open all the secret doors in one game
Collect 5 bags of gold
Sympathy
Get a score of 50 in "Super Dad"
Get rid of the weird smelly stains
Drink all the beer you can find
Get a score of 50000 in "Space Psychos"