Dead Island: Riptide

					
Tramposos:

Duplicate Melee Weapons

To duplicate a melee weapon, start by equipping it from your inventory. Throw the weapon and while it is still in the air, quickly press the appropriate button to access your inventory. Unequip the weapon that you just tossed, then exit out of your inventory. Now you can pick up the weapon and your inventory will show that you now have two of that weapon. This is a great way to earn money quickly, by selling duplicated equipment.
Infinite Character Inventory

Fill your weapon inventory but leave one empty slot. Initiate a Trade with a friend and have them give you two Weapons. Now you can pick up, receive, and hold as many weapons as you want. Be sure to always have at least one more than the maximum number of weapons in your Character Inventory at all times.
Canned Food Exploit

In an early chapter, you’ll meet a girl who asks you to scrounge along the beach for water and food. She’ll next ask for canned food. Once you retrieve around 10 or 20 cans, toss it on the ground and then kill yourself. As the recover process follows, quickly load your last checkpoint and access your inventory. Scroll down and you should find that the cans are back in your inventory. They also should be on the ground where you left them before loading your checkpoint save. You can keep repeating the process to mass a huge pile of cans that you can use to gain experience and money.
Carry Additional Weapons

When you are playing as John Morgan, enter rage mode. John will pull out a staff, which is separate from his standard inventory. If your inventory is full at that point and another weapon pickup is nearby, you can quickly select that other weapon to replace the baton that John is carrying. That will add an additional weapon to your inventory, so that you are now carrying more than the usual maximum of 18 weapons. You can continue to expand your inventory in this manner, by activating rage mode and swapping out the baton for addition items as your inventory swells.
Duplication Of Weapons

First you need a partner in coop throw the item that you want duplicated down.you will also need another machine gun/assult rifle pretty much anything when you hold the trigger down it fires bullets rapidly…next while shooting the weapon have your friend pick it up! It’s harder to do diamonds because there soo small but if you have god guns duplicate them with friends!
Infinite Character Inventory:

Fill your weapon inventory making sure you leave one empty slot and then with a friend initiate a trade where they give you two weapons. Doing this will now enable you to pick-up, receive and hold as many weapons as you desire. You must remember to make sure you always have at least one more than the maximum number of weapons in your ‘Character Inventory’ at all times.
Trampoline glitch:

Go to haili village and climb the ladder on the big unfineshed boat and stand on the ladder and look at the board with the crack in it and walk off and double tap a 1ce and youll fly on to the roof 
Logros:
Achiever 0 Finish all quests in the game

Mystery solved 0 Find all the secret files

Obtain level 50 0 Obtain level 50

Obtain level 70 0 Obtain level 70

Siege Hammer 0 Install a total of 5 barricades during hub defense

Dream Team 0 Complete all the main quests cooperatively with any number of partners

The Collector 0 Find 50% of collectibles

The Hoarder 0 Find all collectibles

Professional Tourist 0 Find all pages from the guide book

Twins 0 Kill the Twins

News junkie 0 Find all the volunteer’s voice recordings

At Your Service 0 Rescue 20 NPCs that have been grabbed by monsters

The Hurt Mine Locker 0 Kill 10 monsters with one mine

BrainLess 0 Kill 50 monsters by smashing, decapitating or shooting them in the head

Hurler 0 Kill 100 monsters with thrown melee weapons

Bully 0 Kill 100 monsters with a kick

Jetboat 0 Kill 100 monsters using the boat’s speed boost

Juggernaut 0 Kill 100 enemies using charge attacks

Better than the arm 0 Kill 25 monsters with a chainsaw

It’s an Order 0 Mark 100 opponents which were then killed by your co-op partners

King among Kings 0 Kill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater

Hunter-Seeker 0 Find and kill all named champion monsters located in dead zones