Axe
Location: Guest House 1F during the prologue!


Pocket Knife
Location: Main House 1F, after family dinner, there is a window near kitchen, you will receive it from Deputy!


Survival Knife
Location: 2F, Near the Elevator, Wrecked Ship
Madhouse Difficulty: Wrecked Ship, 1F, Recreation Room


M19 Handgun
Location: Prologue: 2F Guest House. the room before the attic.
Main Story: you can find it in the trailer in the yard of the main house. It's broken but you can repair it with a repair kit.
Madhouse Difficulty: you can find it in the Old House where you have your Boss Fight with Marguerite Baker



G17 Handgun
Location: 1F Main House, in the Garage Beside the dead Deputy!


MPM Handgun
Location: 1F Safe Room, Wrecked Ship


M44 Magnum
You can obtain this gun when you leave the Main House in the Trailer!
You need to pay 9 Antique Coins to unlock it.


M37 Shotgun
Location: 1F Main House, Main Hall.
you need to replace the broken shotgun in the 2nd floor of the Main House with the one in the Statute's hands!


M21 Shotgun
Location: 2F Main House, Grandma's Room.
to unlock the Grandma's Room, you need to have the Scorpion key which can be found in the Processing Area in the big nameless room!
you need to replace it with the M37 Shotgun but later in the game you can replace it with a wooden shotgun and keep both shotguns!


P19 Sub-machine Gun
Ook, you will get this gun while you are watching a VHS tape! but to get it in the real time you need to unlock the Captain's Locker which is Located in the 4th Floor of the Wrecked Ship!
unfortunately the locker is locked and you need a key, the key is the second floor in the Bunk Room.


Burner
This weapon can be found in two Separate pieces. Both of them are in the 1st floor of the Old House. Grip is in the Trash can at Terrace and the muzzle is in the Water Station!


Grenade Launcher
Location: 1F, Main House, Supplies Room.
you need the Crow Key to open the Supplies Room.
Madhouse Difficulty: you can pick it up at the Trailer in the Yard


Albert-01R
You will receive this weapon during the final Boss Fight and you can carry it to your second playthrough!


Circular Saw
You will receive the saw if you finnish the game under 4 hours!
its the best melee weapon of the game, just walk with it straight into moldeds!


Chainsaw
you will get your hands on it only during yor second fight with Jack Baker and you will lose it after killing him!
but you can get it IF you finnish the game on Madhouse difficulty under 6 hours and and destroy all Mr Everywhere Statuettes!!! (NOT CONFIRMED)


Remote Bomb
you can find around 10 to 20 of them in Wrecked Ship




Golden Crowbar

Gold Blaster
you need to get a S rank or better in Main House 2




Well, I hope you guys find this guide helpful!
If you have any question i will be glad to answer!
BTW, Correct me if there is any mistake in the Guide!
I will try to add the Special Weapons when I obained them!