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