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