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