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