Cheat Dead Island (PC)

Infinite Money and Shotgun Ammo in the Laboratory

In the Laboratory, there are three safes with no locks containing about 3-5,000 in loot. There's usually a 2/3 chance for money to appear. You can leave the laboratory area through quick travel to another area (Resort, Moresby, Jungle) and come back to open the safes to get more money.
After completing the sidequest for Will in the laboratory, shotgun ammo will be made available to you on the table in the room he is in.

Skip Eating Animation

If you are in a rush when eating or drinking items to regain health simply hit KICK right when you take that first bite or sip to skip the rest of the animation.

Floating Propane Tank Exploit

During two or more player games, while using a pick up truck, have a player load a propane tank in the back
of a pick up truck, climb in the back. The propane tank will start to slide back and eventually drop out of the truck and follow you, the player in the truck can shoot the tank killing any group of zombies near the tank, works very well while trying to turn off the 5 fire hydrants.

Item Duplication

In solo mode, go to a checkpoint and drop the item you want to duplicate -- you can drop your entire inventory. Kill yourself (deodorant bomb, molotov etc.) and when the respawn countdown appears, pause your game and reload the checkpoint. Everything you dropped will be in on the ground AND in your inventory. You won't lose any cash for restarting the checkpoint.

Weapon Duplication

Using the digital fighting control scheme, hold the LEFT TRIGGER to aim your weapon. Hit the DROP (Y/TRIANGLE) button RIGHT as you hit the RIGHT TRIGGER to throw the weapon. With the correct timing, you should throw one weapon and drop an identical one.

Infinite Diamonds

Method 1: In Chapter7, City Hall Part 2, after you kill the mayor, collect the diamond in his safe. Head back to the sewers then turn around and go back to the mayors room.  The diamond should reappear back inside the safe. You can sell these for $1500 and it helps for the mods that use diamonds.
Method 2: When you get to the City of Moresby, there is a safe house/fast travel spot called Square. Inside one of the refrigerators is a bottle of champagne. You can take this bottle to the resort for the Time For Booze continuous quest and if you fast travel back, the bottle will be back in the fridge to take again.

Instant Save

I find it frustrating that the game NEVER saves. To save whenever you like, simply go to Options, select 'Controls' and set the fight style from analog to digital or vice-versa. The game saves every time you do it.

Kill a Suicider Without Using Weapons

First of all, The Suicider is your friend. He's your personal mobile explosive device and is always ready for action. Suiciders can be found alone or amongst a group of enemies. When they are found in a group, run towards the Suicider, brushing it as you pass. It will build up and explode giving you time to get a safe distance while killing the enemies directly surrounding it. Simply running past the Suicider doesn't guarantee it will blow up and running head on into it is, well... suicidal!

Quick Kills with Blades

When being approached by Walkers or Infected, wait until they get a few feet from you before you defend against them. Simultaneously take a step back and swing your melee weapon at them "aiming at the head" for higher damage output. Walkers and Infected usually take a huge swing at you when they get near you so performing this technique makes them miss while giving you the opportunity to decapitate them. It works nearly every time as long as your weapon's condition is at least 50% or better.

Never Dull Your Weapons

No matter the weapon, no matter the level, throwing your weapons never dulls them.

Avoid Zombies by Climbing Cars

Although there are a lot of rooftops in Moresby, to get away from zombies, jump on the hood of the car, and the zombies can't touch you. If you crouch and aim right, you can kill them from the safety of a car roof.

Easy Early XP

When you are in the hotel and the voice tells you to go to the maintenance room, keep going down the hall until you have to run away from the zombies. DO NOT GO INTO THE MAINTENANCE ROOM.  Once you pass into the next hall you should see a zombie in a doorway to your left, directly after that there is a door you can open. Open the door run in and only let one zombie in. Make sure you close the door behind him then once inside start kicking him until he falls down then crouch and keep punching his head. It will take about 2 or 3 minutes because the zombie is level 50. Once he is dead you should get around 1300 XP. Just retrace your steps to get another zombie. You can do this as much as you want as long as you don't run into the maintenance room.

Easy Thug Kills

When fighting a thug first wait for him to swing a couple times making sure not to let him use your face as a punching bag. When he stops and roars or if you are close and he stopped swinging just run up and hit is arms. Once you have one just wait for him to swing with the working one and repeat the process. You will either break them with a blunt weapon or cut them off with an edged one. Either way he isn't nearly as dangerous. Now just run around him and try to get behind him so he doesn't bite you. Just keep swinging for the back of the head and eventually the giant will make a less then graceful plummet to the floor. Or you can shoot him in the face or throw explosives. Those work mighty fine too.

Quick Kick

You may exploit the animation of your melee kick -- the faster your foot recedes, the sooner you can kick again. Fore-shorten the kick animation by standing directly over a prone enemy; clever players will notice the kicks come out a little faster (you still need to spam the kick button though).

Drowning Zombies for XP

If you're scooting along the island solo or with a party and you have zombies chasing you, simply run into the water, kick them and watch them drown. Easy way to get XP and not die from trying to melee the crap outta zombies.

Chrome 2 Poster in Dead Island

During "Born to be Wild," talk to Mike Davies in the hotel and head into the next room with the work bench. Continue to the room with the computer and look for the Chrome 2 poster on the wall. Chrom 2's developer, Techland, is also the producer of Dead Island.

Hidden Nude Pictures

Head to the mayor's office in City Hall in Act 2 (before the zombie attack). Behind the painting on the back wall in the room behind the dies are three photos of a partially nude woman.You have to knock the painting down to see them.

Joe Dirt Reference

The name for the person in the laboratory is "Joel Dirt."

Resident Evil Umbrella Corporation Reference

The umbrellas in Dead Island resemble the Umbrella Corp. logo from Resident Evil. Coincidence? Probably.

Dead Island License Plate

The license plate on the truck you find all the car parts for says "D34D 1574ND"

Easy 'I want one of those' Achievement/Trophy

Unfortunately an upgrade does not count toward this achievement/trophy, it has to be a complete mod using any available Blueprints. It does not matter which weapons you make or how many of each. The Deo-Bomb (side-quest reward) is probably the easiest to make, only requiring two Deodorant and one Duct Tape; or the Meat Bait, requiring three Meat and one Duct Tape. These items can generally be looted and purchased with ease.

Easy 'Gesundheit!' Achievement/Trophy

Medkits will be scarce throughout the entirety of the game. The best option for this is to use whatever cash you have after completing the game to buy the remainder of what you need and use them all in a row while standing in some fire. You can start a new game and grab the one in the bathroom of the first room in the Prologue, use it and reload the checkpoint to farm this. You can also load Chapter 18 in a NG+ as well, there will be a handful lying there in the beginning.

Easy 'Light my fire' Achievement/Trophy

Using a Molotov is likely your best bet here. Throwing a Meat Bait out will easily group them and keep them off you. During Act 2 you can exit the church and see an ambulance on a bridge to the right. Head across it and aggro those zombies and the few at the end of the bridge as well. Run back and stand on top of the ambulance to get a group of 10, then drop your Molotov on top of them.
There are multiple other places throughout the city to get this as well. Use a pistol from far off to aggro zombies and jump onto a car or truck. You can run around the area quickly to find more, then go back. Shoot anything in the distance so that they come to you.

Easy 'Steam Punk' Achievement/Trophy

Any weapon created using either the Shock Mod or Torch Mod will unlock this achievement. The Torch Mod is the first you'll come across as a reward from the "Counsel of Despair" side quest. The Shock Mod is a reward from the "Black Hawk Down" main story quest.

How to Get 'Oh, No You Didn't'

This one will require a bit of patience but is not a difficult one to get. When you come across a ram kill all other enemies around it. Then constantly dodge its attacks and either hit it, throw weapons or shoot it. That's the easy part. The problem is it may catch on fire seeing as the first occurs when you first come to the church and there is a fire there. Just lead him away from it and you will be OK. When he was very low health wait for him to charge, move out of the way and tackle him from behind (from behind because he cant hit you and there will be more damage dealt to him) and do that until your need for a shiny new Achievement or Trophy is fulfilled.

How to Get 'Light My Fire' and '10 Heads Are Better than One'

Getting these two Achievements / Trophies  requires the same technique. In the city, simply run around and have a bunch of zombies follow you, get to a car or truck and stand on top. When they are all within range either kill ten in a row a row with head shots or throw down a molotov.

Easy "Can't Touch This" Achievement/Trophy

This Achievement is quite simple, all you need is an upgraded hammer and patience. When you find a hammer go to the money collecting work benches and upgrade it all the way. Then venture out and when you find a zombie do your best to make sure it is a one to one fight. Have the zombie chase you and after its first swing kick it. When it is down kick it in the legs or chest until it has low health and finish it off with a hammer to the brain. Also, if you accidentally curb stomp the zombie and kill it with kicks it wont count against you in the counting to 15 kills with a hammer, without being touched.

New Game + mode Successfully complete the game. Select "Next Play" to start a second playthrough with all previously earned money and inventory items (blueprints, weapons, etc.).

Duplicating items Throw the weapon you want to duplicate. Before it hits the ground, press Up. Then, choose to drop the weapon that is equipped. Exit out of the menu, and pick up both items. Repeat this as many times as desired.
When you reach a checkpoint during any campaign quest in Solo mode, drop the item(s) on the ground you want to duplicate (you can drop all the items in your inventory). Then, kill yourself by using Deo-Bombs or Molotov's. When the respawn timer begins to countdown, pause the game, and reload your checkpoint. When you respawn, all the weapons you dropped will be back in your inventory and will also still be laying on the ground where you dropped them. Note: You also will not suffer the cash penalty from dying since you reloaded the checkpoint. This glitch was done on an unpatched version of the game.
Equip an item that can be thrown, then press [Throw Weapon] + [Drop Weapon]. Your character should throw the item, and then quickly drop a copy of the same item. Repeat this as many times as desired.
Look at your feet, hold [Throw Weapon], then hold [Swing] + [Drop Weapon]. If done correctly, the item will fall out of your hands, and you will throw another one down at your feet. Note: This can be done with both the analog and digital fighting style.
While playing as Logan, hold [Aim], then hold [Fury] while aiming at multiple zombies, then press [Attack/Throw Weapon]. Instead of Logan using his knives, he will throw the equipped weapon, causing the game to duplicate your equipped item.
Equip a stackable item, such as cocktails, grenades, medkits, etc. Make sure you are one item under your item capacity 9/10, 13/14, etc. Make sure the item is equipped and in your hand. Then, craft the Deo-Bomb, Cocktail, or Meat Bait. You will now have two stacks of that item instead of one. Repeat this as many times as desired. Just make sure you have enough materials. Note: Make sure to use a recipe that is different from the item you are duplicating, as this glitch sometimes does not work if it is done that way. For example, do not use the Deo-Bomb recipe if you are duplicating the Deo-Bomb. This glitch was done on an unpatched version of the game.
Quick travel between areas until a merchant sells the necessary materials to craft a Deo-Bomb. Then, go to a crafting table, and craft up to the max of 30 Deo-Bombs. Once you have 30 Deo-Bombs in your inventory, each new bomb crafted will create an additional 30 Deo-Bombs. Repeat this as many times as desired. -From: DJD96

Easy experience Reach Ope's Cave in Act 3, then use the "Duplicating items" trick to copy your most valuable weapon. Sell the weapons to a vendor to get a lot of money, then buy Oleander from a vendor if it is available. After buying as much Oleander as possible, fast travel back to Ope's Cave, and turn it in to the tribesman that give you the continuous "Dreamtime" event. Each time you turn in five Oleander Blossoms, you will get $1 and 1,000 experience points. Repeat this as many times as desired.

Easy money Go to the warehouse, and get the Hammer and Baseball Bat. Then, fast travel to the Church, and sell them to get approximately $400. Go back to the Warehouse, and the Hammer and Baseball Bat will have respawned. Repeat this as many times as desired. Note: You must be in the City and have discovered both the Church and the Warehouse to do this trick.
Find an area with a lot of value items (champagne, etc.), such as kitchens and fridges. Collect the items, then leave the area or fast travel to another location and back for the items to respawn. Collect as many items as possible, then sell them for easy money.
In the Slums, there is an abandoned building at the bottom of the map. Once it is cleared out, you can fast travel to it. In the back of the building are two rooms, and each has a fridge that sometimes contains a bottle of champagne. Keep fast traveling to another area, and then fast traveling back as many times as desired to get a lot of champagne for easy money.
Use the "Duplicating items" trick to duplicate as many items as desired. Then, sell the items for easy money.

Easy Molotov cocktails After you complete Act 3, enter the hotel, and go down the hallways until you reach the lounge with tables and chairs. There will be approximately 10 bottles of alcohol on the bar that you can pick up. These bottles of alcohol will respawn once you exit the hotel and re-enter the hotel, traveling the same way you went. Collect as many bottles of alcohol as desired, then go to Harland, and trade the bottles of alcohol for Molotov cocktails. You will get one Molotov cocktail for every three bottles of alcohol. Repeat this as many times as desired. A Molotov cocktail can kill most zombies in a single area instantly. -From: Demetri

Easy "Military-Industrial Complex" challenge While doing the "Bitter Return" mission, there is a mounted machine gun on the balcony of City Hall. Mount the machine gun and fire it. Every bullet fired counts towards the "Military-Industrial Complex" challenge. Keep shooting to easily complete all four levels.

Killing humans This trick works best with Logan. To easily kill humans, throw modded weapons. However, there are a few exceptions. The weapon must be sharp. Blunt weapons only damage them slightly. The military machete works best. The weapon must have either a Poison or Shock mod. Fire will not do any damage. Make sure you upgrade the weapon to at least level 3. It is recommended to mod a powerful weapon so it does more damage against stronger humans. Keep your distance when throwing, and have plenty of ammunition. This is one reason why Logan is better for this, as thrown objects can come back to him. However, if you have a clear view of the target, throw the weapon, and they should die instantly.

Killing large groups of zombies When you encounter large groups of zombies or a lot of them are chasing you, run to the closest vehicle. Jump on top of it, and crouch on the hood. You can hit the zombies, but they should not be able to attack you. Note: Do not do this on the roof of the vehicle, as you will not be able to hit them, and they can still sometimes hit you. Use the analog style of fighting to get more decapitations and swing your weapon faster.

Drowning zombies When zombies are chasing you, simply run into the water, then kick them so they drown to get easy XP instead of trying to melee them.

Getting kills without dulling your weapon Killing zombies will dull your weapon. However, when the weapon is close to breaking, it is not completely useless. Throwing your weapons can damage zombies without dulling the weapon. If you have a weapon worth keeping, but it is almost used up, keep throwing it at zombies until you can repair it again.

Hidden provocative pictures In Act 2, enter the mayor's office in City Hall before it gets attacked by zombies. Knock down the painting on the very back wall in the room behind the desk to find three photos of a semi-nude blonde woman.

Banoi Herald Excerpt locations Search the indicated locations to find the Banoi Herald Excerpts:
Resort

1. When you first wake up after being attacked, it is by the foot of your bed.
2. During the "Exodus" main quest, you will come to a large group of zombies by a car and Harris. To the left is a building (Surf Shop, south of the Lifeguard Tower), and it is on the desk with the computer.
3. During the "Exodus" main quest, when you get to the Lifeguard Tower, it is on the first floor in the back room on the desk.
4. In the Red Bungalow (north-west of the Lifeguard Tower), in the bedroom desk.
5. In the Golden Bungalow District (dark bungalow), living room corner shelves, near Anne Snider.
6. In the Silver Bungalow District, power station, in a toolbox.
7. In the Diamond Bungalow District, Gazebo bar, on the desk inside.
8. In the Diamond Bungalow District, north most bungalow, living room shelf.
9. In the Lookout Tower, enter the bunker from the "Black Hawk Down" main quest, travel to the northern bunker. When inside, climb up the ladder.
10. In the Marine Workshop, on the workbench in the warehouse.
11. In the bunker west of the Marine Workshop, on a workbench in the locked bunker (it unlocks at the start of Act 3).
12. In the hut along the Western Road, east of the hotel. Harlan Johnson is in front of this hut, and gives the "Make Yourself At Home" side quest. It is on the dresser near the bed.

Hotel Parking Lot and Interior

13. During the "Born To Be Wild" main quest in the hotel, it is in the room with the morphine on a desk, after #15 and #16.
14. During the "Born To Be Wild" main quest in the hotel, after you give Ken the morphine, continue through the doors that were locked, and straight ahead is a door with a couple of zombies behind it. It is on the desk in that room.
15. During the "Born To Be Wild" main quest in the hotel, you will come to a kitchen with ovens. Stay to the left in this room, and follow the map. After you go through a dish washing room, you will be in a small room. It is on a luggage cart (after #16).
16. During the "Born To Be Wild" main quest in the hotel, as you are going through the hotel, you will walk down a hall with windows with blinds. On the left side of this hall is a door, which is before the gift shop. It is in the room on a table.

ID Card locations Search the indicated locations to find the ID Cards:
Resort

1. During the "Passport To Life" main quest, in a blue suitcase in front of Bungalow #4.
2. In the Coastal Pier, bar at the end of the pier, east of the Lifeguard Tower, above the weapon chest.
3. At the coast, directly north of #2, on the windows edge of the Lifeguard Stand.
4. At the coast, on a beach blanket on the shore, east and slightly north of the bungalow used in the "A Ray Of Hope" side quest.
5. In the Diamond Bungalow District, north of #4, in a bungalow, on the table in the living room.
6. In the Diamond Bungalow District, north of #5, on the center table on the stage.
7. In the bunker (unlocked during the "Black Hawk Down" main quest), on some crates.
8. In the Diamond Bungalow District, bar on the beach of the small island east of #6
9. In the Diamond Bungalow District, in the eastern most bungalow, south and slightly to the east of #8, near the bathtub.
10. In the Diamond Bungalow District, second bungalow to the right, to the west of #9, on the bed.
11. During the "Too Much Sugar" side quest (Silver Bungalow District), as you are coming to Bungalow #14, it is in the building to the right on a desk.
12. In the Golden Bungalow District, bungalow with Kim and Anne, nightstand near the bed.
13. In the Golden Bungalow District, in the bungalow with Luke Craig, on the nightstand, near the bed.
14. During the "Seek And Loot" main quest, when you get to the gas station, it is in the back room on a table by the juice boxes and cash register.
15. In the warehouse north-west of North Gas Station, on the desk.
16. In the warehouse beside the mechanic's shop, on the roof.
17. In the warehouse west of the mechanic's shop, under the lamp on the right counter.
18. In the hotel exterior, near the front entrance, by the buses, in an open suitcase.
19. In the hotel exterior, inside the bar with the "Dead Zone" graffiti (it is unlocked during the "Born To Be Wild" main quest).
20. In the hotel exterior, in the south-eastern women's underground washroom, on the sink.
21. In the hotel exterior, in the bungalow where you find Anne's bear from the "Toy Story" side quest.
22. In the hotel exterior, in the bungalow from the "Gold Digger" quest, in some open luggage.
23. In the hotel exterior, in the survivor Steve Summers' bungalow, in the living room.
24. On the roof of of the South Gas Station.
25. At the far west road on the map, about 180 meters north of the gas station is a truck that has crashed into a light post, near two crash police cars. It is on the dashboard.

Hotel Parking Lot and Interior

26. During the "Born To Be Wild" main quest in the hotel, it is next to one of the servers that you have to reset (after #29 and #30).
27. In the Meat Locker in the hotel, in the middle of the room, on the floor near a corpse.
28. In the hallway after the elevator, after jumping down the shaft and exiting the elevator, it is near a corpse on the floor.
29. During the "Born To Be Wild" main quest in the hotel, after you walk through the shower room, it is on a shelf to the right (after #30).
30. During the "Born To Be Wild" main quest, it is straight ahead on a couch after entering the hotel.

Investigation Tape locations Search the indicated locations to find the Investigation Tapes:
Resort

1. Chapter 1: Welcome To Banoi (Starting The Investigation) - In John Sinamoi's Bungalow (#11), the building to the right of Ted kneeling in a pool of blood, under the bookshelf in the living room.
2. Chapter 2: Busy Surviving (Meeting The Informant) - During the "On The Air" side quest, at the top of the lighthouse, on a table beside James Stein.

Hotel Parking Lot and Interior

3. Chapter 2: Busy Surviving (Chaos In The Streets) - During the "Born To Be Wild" main quest, in the hotel, on a table on the right at the end of a hall overlooking the pool.

Source: Cheat Code Central (http://s.tt/1dCBI)