written 1/5/2026, updated 1/6/2026

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• Published: Joindots
• Platform Played: Nintendo Switch 2
• Price: Bundled Price; MSRP: $15.99
• Rated: E10 (Mild Blood, Mild Violence, Tobacco Reference)
• Genre: Adventure
• Date Released: March 7, 2024

Greed: The Mad Scientist was originally released Dec 17, 2018 by Urchin Games and then re-released for more modern consoles in 2024. It is the first game in the series. This walkthrough was started because I ran into a weird glitch and could not find the answers either in-game or online. In the end, though it did allow me to proceed, I restarted the game and was able to enjoy it the way it was meant to be played. Although the graphics seem like it’s something from the early 2000’s, the gameplay is fine and smooth.

Game Start

Watch the intro cinematics

Part 1: Arrival (Tutorial)

• Talk to Sara, and take the letter
• Inspect the sign and take the Brick, Handle, and read the note
• Look on top of the gate pillar and take the Lightbulb and Hook
• Look inside the car, take the Car Keys, then press the red button
• Look inside the trunk

Hidden Object Puzzle – Car Trunk

• Get Chained Hook and Screwdriver
• Use the Chained Hook on the gate padlock
• Look at the back of the car and attach the other Hook
• Use the Car Keys inside the car
• Go through the gate
• Watch the cutscene

Part 2: Pontoon Laboratories

• Click on the box on the ground. There’s nothing you can do with it now
• Look at the glowing console next to the main door
• Take the Fuse and Battery x2
• Look at the small window of the guardhouse
• Take the Computer Chip then use the Brick on the glass
• Take the Fuse
• Look at the fuse box to the left of the main door
• Use the Handle then Fuse x2

Fuse Puzzle

This is a memory puzzle. Flip the switches in the correct order

Solution: Red, Pink, Yellow, Brown, Blue, Orange, Green

• Go into the now open Security Check Point
• Take the Drawer Key and Pool Ball from the desk
• Take the Battery from the notice board
• Take the Battery and Valve from the plant
• Take the LED from the other desk and use the Drawer Key
• Read the paper and note the safe code (6807)
• Look at the wall safe

Wall Safe Puzzle

Change the numbers to fulfill the code (6807)

Solution: Change the numbers in order from column 4, then 2, then 1, then 3

• Take the Blank Card
• Look at the machine on the desk
• Use the Battery x4, then Blank Card

Card Machine Memory Puzzle

This is a memory puzzle

• Take the Access Card and Battery x4, then use them on the glowing door console
• Go into the Laboratory Reception
• Watch the cutscene
• Take the Crowbar and use it on the fire extinguisher glass
• Take the Fire Extinguisher and Valve
• Go down the Corridor
• Take the Rag and read the note
• Use the Valve x2 on the pipes with the steam coming from it

Pipe Valve Pressure Puzzle

Turn the valves so that all the dials turn to 0

Just turn them until you get the answer

• Click on the pile

Hidden Object Puzzle – Corridor

• Get the Drill Bit, Computer Chip, and Clippers
• Use the Drill Bit under the gurney for a Hammer Drill
• Go back to the Reception and use it on the filing cabinet
• Take the Wrench and read the note
• Use the Rag on the portrait on the wall
• Go into the Corridor
• Use the Nut and Wrench on the gurney
• Go into Dr. Goodwin’s Office
• Read the note on the ground
• Take the Cabinet Key and Lighter on the coffee table
• Use the Cabinet Key on the glass cabinet
• Take the Computer Chip, Fingerprint Kit, and Glass Cleaner
• Take the Charger from the desk, then use the Fingerprint Kit on the lamp
• Take the Fingerprint
• Use the Screwdriver on the security camera for a CD
• Go back to Reception, use the Fingerprint on the reader, then use the CD in the drive
• Note the Door Code (58741)
• Use it on the Corridor door keypad

• Go Outside
• Click on the monster, then watch the cutscene
• Use the Crowbar on the wooden box
• Take the Funnel, then use the Lighter on the blowtorch
• Use the Blowtorch on the metal door
• Go into the Generator Room
• Use the Bulb on the overhead light
• Take the Chain, Computer Chip, and Remote from the desk
• Look at the pile next to the generator

Hidden Object Puzzle – Generator

The first time I played this game, this puzzle glitched out and disappeared

• Get Pulley Wheel, Snake Grabber, and Electrical Tape
• Go Outside, use the Pulley Wheel and Chain on the pillars, to get a Copper Plate
• Use the Snake Grabber under the train for a Copper Plate
• Use them on the generator

Generator Puzzle

Spin the circles until you solve the puzzle

In my glitched out version of this game, I was somehow able to play this puzzle despite being unable to get the copper plates

• Get the Skeleton Hand and Computer Chip
• Go into Dr. Goodwin’s Office
• Click on the skeleton, use the Skeleton Hand, and refer to the note Sara originally had to properly orient it and unlock the door

• Inside Dr. Goodwin’s Side Room, take the Ring from above the portrait, and use it on the wall safe

Wall Safe Puzzle

Spin the rings to open the safe

Solution: Solve the inner ring first, then the outer ring, and the middle one

• Take the CD, Pool Ball, LED, and Computer Chip
• Read the note
• Back in Reception, use the new CD in the drive
• Watch the cutscene

Part 3: Upstairs

• Take the Gas Mask, and use it on the acidic staircase

In my glitched out game, I didn’t need the gas mask to view the acidic staircase

• Go into Dr. Goodwin’s Side Room, and take the pH2 Bottle
• Go back and use it on the acidic staircase

Because it makes so much sense to combat highly acidic chemicals with a highly acidic chemical

• Go upstairs
• Take the Empty Can
• Go into the Washroom
• Look at the sink, read the note, then take the Beaker and Bug Spray
• Go back and down the hall
• Use the Bug Spray on the pump to get a Bug Spray Pump
• Look at the shelf on the wall

Hidden Object Puzzle – Upstairs Corridor

• Get Glass Jar and Detergent
• Use the Clippers on the broken elevator panel for a Wire
• Go backwards and use the Bug Spray Pump on the scorpion in the toolbox
• Take the Trowel and Wrench
• Go into the Washroom
• Use the Wrench on the valve
• Look in the shower and take the Pipe and Coin
• Go back down the hallway and use the Trowel on the loose floorboard
• Take the Tile Piece back a room, and use it on the exhaust fan for a Briefcase Ring
• Go down the hallway and into the Ward
• Use the Pipe on the machine on the counter and take the Vacuum Cleaner
• Look at the dead flowers between the bed and use the Glass Jar on the poor Honeybee (probably starving)
• Release it near the noxious fumes in the back of the Ward
• Use the Vacuum Cleaner (…what…?)
• Take the Briefcase Ring
• Go back to the Washroom and use the Briefcase Ring x2 on the box on the ground
• Read the threatening note, then take the Detonator
• Back out a room, use the Detonator, Wire, and Electrical Tape on the giant rubble blocking the door to Barwick’s Office
• Head on in
• Look at the big desk for a cutscene
• Look under it and take a Computer Chip and Knob
• Look at the small desk and take the Nitrogen (LN2 is liquid nitrogen) and Coin Bottle
• Go back to the hallway and use the Knob on the brown doors (…how does that just fit and work?)
• Go into the Cafeteria
• Take the Lighter, Box Cutter, and Drawer Key
• Take the Syphon Pipe and Paper Scraps from the wastebasket
• Take the Squeegee from the near the vending machine
• Go back to Barwick’s office and use the Box Cutters on the boxes (it stays they’re sealed, but I don’t see any tape anywhere on them)

Hidden Object Puzzle – Barwick’s Office

• Get Coins, Pool Ball, and Repair Kit
• Use the Repair Kit on the broken elevator panel
• Go way back to the Outside
• Look under the door and take the cap off the train’s fuel tank
• Use the Empty Canister and Syphon Hose
• Go into the Generator Room and use your new Filled Diesel Can to fill it up
• Go back to the Ward
• Use the Paper Scraps, Lighter, and Coin Bottle in the bowl (Why couldn’t we just break the bottle?)
• Pick up the Scissors, use them on the curtain, and take the Coin
• Go to the Cafeteria and use the Coins x4 on the vending machine
• Take the Juice Pack and use it on the giant radioactive ants nearby
• Take the Antena ([sic], they mean Antenna) Part that they were trying to eat
• Use the elevator to go to the Roof
• Take the Ladder
• Read the note on the bird’s nest, then take the Train Key and Pin
• Click on the pile of stuff

Hidden Object Puzzle – Roof

• Get Lubricant and Pool Ball
• Head down the elevator to the Ward and use the Pin on the IV bag. You’ll automatically catch the liquid in the Beaker and now you have NaCl (sodium chloride)
• Go across to the cafeteria and use the Lubricant on the door
• In the Staffroom, take the Pool Ball on the sofa, then use the Scissors on the sofa to get the Foam
• Use the Drawer Key on the wood dresser and take the Antena Part
• Use the Pool Ball x5 on the box on the pool table

Pool Ball Puzzle

There aren’t any instructions because you’re supposed to use the first clue Sara gave you in the game

Solution:

• Take the Antena Part
• Go to the Washroom and use the Detergent and Foam in the water bucket to get Soapy Foam
• Don’t forget to take the Water Bucket, too
• Go back up the roof and use the Soapy Foam, then Antena Part x3

Antenna Puzzle

Use the red dials to move the lasers into the correct orientation

I have no idea how they’re supposed to be oriented. SKIP!

• Go down into the secret room!
• Read the note on the ground
• Take the Dagger from underneath the desk, use the Charger in the socket, then read the monitor
• Click on the hazmat suit in the ground

Hidden Object Puzzle – Secret Room

• Take LED, Glass Cutter, and Access Card
• Head back to the Corridor to use the Access Card on the laser-barred door across from Goodwin’s Office which is the Radiology Lab
• Use the Nitrogen then Fire Extinguisher on the red-hot cabinet thing
• Inside, take the Brush (Duster) and Knob (which are somehow not burnt to a crisp)
• Look at the silver tube on the large glass bioreactor thing, and use the Water Bucket to snag the Knob
• Use the Knob x2 on the console next to the huge door

Radiology Console Puzzle

Turn the knobs until all 4 columns are level with the red line

• Advance into the X-Ray Room
• Take the Chain Cutter (Bolt Cutters)
• Use the Glass Cutter on the display case and take Sam Blood Sample
• Use the Dagger then Remote Control on the wax above the machine
• This opens the glass tube where you can take the Logo Part (Looks suspiciously like test tubes)
• Go back out and use the Chain Cutter on top of the staircase
• Click on it to knock it over the side and go forwards into the Storage Area
• Use the Brush on the shelving, then take the Engine Oil
• Use the Ladder under the cabinets, then open them

Hidden Object Puzzle – Storage Area

• Get the Logo Part, Computer Chip, and Welding Machine

Part 4: End Game (END)

• Go Outside to the train and use the Train Key on the front
• Go into the train and click on the pile on the ground

Hidden Object Puzzle – Train

• Get Bullet
• Use the Funnel and Engine Oil on the hole under the window
• Use the Glass Cleaner and Squeegee on the dirty window
• Go down the Tunnel… except the lever is broken and you can’t!
• …But that’s okay because all you have to do is put the broken lever together and use the Welding Machine

WAIT!

• Before going full speed ahead, travel back to Barwick’s Office and use the Bullet in the Gun on the desk to take it
• OKAY, NOW, go ahead back to the train and into the Tunnel
• Use the Gun
• Check out the sign, then take the Logo Part from near the cones
• Inspect the barriers ahead, read the note, then use the Chain Cutter
• Use the Chainsaw (…I’m not actually sure where I got this from. I just noticed it in my inventory along the way)
• Go into the Abandoned Lab
• Look at the machine on the left and read the note
• Look at the monitor and listen to Goodwin (He seems confident that only Sara would have made it this far)
• Look at the counter on the right and take the Computer Chip and Gamma Ray Emitter
• Go all the way back to the Secret Room (from the Roof)
• Look at the machine on the right, use the LEDs and Gamma Ray Emitter

LED Light Puzzle

The monitor to the left of this machine tells you that this machine will create the Elixir. The do that “You need to align the LED’s in such a manner that no 2 of the same color are connected to each other.”

It’s not hard, just a little tedious to move the little lights. Many different answers are possible

• Take the Elixir and the Gamma Ray Emitter
• Go WAAAY back to the very beginning of the game and use the Logo Parts x3 (Waddya know, they actually are logo parts)
• Take the Capsule
• Go through the gates. Remember that box the monster threw at you? Use the Computer Chip x9, and take the Bacteria
• With all the parts in hand, skip on back to the Abandoned Lab (come to think of it, how long has this lab been abandoned with all the vines growing like that in front of it? Seems to still be powered. Does that mean Goodwin predicted this a reallllly long time ago?)
• Check out the machine to the left

Make the Cure!

Remembering Goodwin’s instructions on the monitor, put the cure together in order:

• Watch the cutscene

GAME COMPLETE

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