Full list of all 82 Monsters 'til Midnight achievements.
The base game contains 76 achievements, and there are 3 DLC packs containing 6 achievements.
Fill the collection
Evolve the Flame Thrower
Evolve all the weapons
Evolve the Blunderbuss
Evolve the Shrieking Skull
Evolve the Stone Heart Shield
Evolve the Beam Sentry
Evolve the Crumpet Cannon
Evolve the Gear Grinder
Evolve the Tesla sphere
Evolve the Plasma Rifle
Evolve the Holy Hand Grenades
Get the Eagle Talisman to max level
Evolve the Seeker Missile
Evolve the Cucumber Sandwiches
Survive for 15 minutes with Catterick Larcen
Defeat the forest boss
Escaped the forest via the portal
Survive for 15 minutes with Clive Thulu
Defeat the tomb boss
Escape the tomb via the portal
Get the Missile Launcher to max level
Evolve the Laser Beam
Find and equip Repel Enemies
Survive for 15 minutes with Mrs. T
Equip 2 evolutions at the same time
Find and equip Heal Player
Evolve the Revolver
Evolve the Scone Mines
Retrieve a secret relic from the forest
Survive for 8 minutes with Monobot
Retrieve a secret relic from the tomb
Reach level 20 in the forest
Get Blunderbuss to max level
Destroy a spawner in the forest
Survive 20 minutes in forest
Find the weaponsmith's journal
Reach level 17 in the tomb
Destroy a spawner in the tomb
Survive 20 minutes in tomb
Find the compass
Fill 50 entries in the collection
Defeat the mansion boss
Escape the mansion via the portal
Find and equip Explosion
Evolve the Stake Launcher
Find and equip Radial Bullet
Destroy a spawner in the mansion
Survive the unkillable death clocks for 1 minute
Find and equip Loot Vacuum
Find and equip Freeze Enemies
Hold 6 different items
Collect a total of 10,000 gold
Evolve the Cricket Bat
Complete a total of 25 runs
Evolve the Grave Warden
Survive for 12 minutes with Count Ghostache
Retrieve a secret relic from the mansion
Find and equip Fire Area
Survive for 7 minutes with Dogface
Survive 20 minutes in mansion
Find the map
Defeat a total of 10,000 enemies
Drink 20 cups of tea
Survive for 10 minutes
Get Stake Launcher to max level
Fill 25 entries in the collection
Get Revolver to max level
Reach level 15 in the mansion
Survive for 6 minutes with Cannonhail
Hold 6 different weapons
Reach level 10
Survive for 5 minutes with any character
Get Cricket Bat to max level
Defeat a total of 1,500 enemies
Reach level 5
Escape the Cursed Mansion via the portal
Escape the mansion within 18 minutes
Escape the cursed tomb via the portal
Escape the tomb within 18 minutes
Escape the cursed forest via the portal
Escape the forest within 18 minutes