Updated September 1, 2023
Checked for new codes!
Few browser games are as fun or addictive as Slither.io is. This browser and mobile title lets players crawl through mounds of food and climb to the top of an ever-growing heap of worms battling for supremacy in this title. The only thing that could make this title even more addictive is free rewards via codes!
The Pro Game Guides Slither.io Codes list lists the current codes that players can redeem for several types of different unlocks and rewards. Each of the game's codes will help you customize your worm with ease!
For more on Sliter.io and other free games, visit our other pages, like Best Mobile IO Games, Best Unblocked Games for School, Best Browser Games, Best Free Games of 2021, and Ubisoft Free Games List.
All Slither.io Codes List
Pro Game Guides updates this page each time we find extra codes available. Make sure to redeem the codes in this list as soon as possible to avoid them expiring and locking you out of rare rewards! Each code is tested upon publication, so if you find a code that doesn't work, let us know which one gave you trouble in the comment section!
Make sure to copy the code exactly as it appears on this page to avoid errors.
Slither.io Codes (Working)
- 0056-6697-1963—Redeem this code for a Hard hat, Dragon Wings, and a Crown.
- 0068-5256-3709—Redeem this code for Angel Wings, Bear Ears, and a Graduation cap
- 0150-6765-3242—Redeem this code to get Heart Glasses, Glasses with a Fake Nose and Moustache, and a Monocle. Plus a Pikachu Skin.
- 0295-1038-1704—Redeem this code to get Star Glasses, Blue Round Glasses, and Brown Short Hair.
- 0465-2156-5071—Redeem this code to get Antlers, Short Black Hair, and Hypnotic Glasses.
- 0351-6343-0591—Redeem this code to get Pink Star Glasses. Short Brown Hair, and 3D Glasses.
- 0368-9044-0388—Redeem this code to get a Bat Wings, Devil Ears, and a Sherlock Holmes Hat.
- 0139-6516-0269—Redeem this code to get a Detective Hat, Bear Ears, and Bunny Ears.
- 0334-1842-7574—Redeem this code to get a Baseball Cap and Headphones.
- 0068-5256-3709—Redeem this code to get Ice Wings, an Orange Hat, and Bat Wings
- 0309-9703-3794—Redeem this code to get a Headband, Short Red hair, and a Green Tie
- 0577-9466-2919—Redeem this code to get a Red Cape, and Cat Eye Glasses
Slither.io Codes (Expired)
- 0001-0002-0003—Redeem this code to get a/some cosmetic item.
- 9999-9999-9999—Redeem this code to get a/some cosmetic item.
How to Redeem Slither.io Codes
How to enter Slither.io Codes
Head to the Slither.io Main Menu, and press the Enter Code button on the right side of the screen. Next, enter the codes exactly as they appear in the list above by pressing the correct Keypad number in order.
Once you input the 12-digit code, the game will automatically check the code is valid. When one of the codes in Slither.io works, a new screen will appear, showing you your worm and the cosmetic items above it.
If the code is invalid or expired, the 12-digit code will shake for a few seconds, indicating that the code did not work.
What is Slither.io?
Slither.io is a multiplayer online game where players control a snake-like creature that grows by absorbing resources on the map. Other characters wander the map simultaneously, and the unlucky players who collide with other users will die, leaving an enormous food trail behind for other invertebrates to scoop up and grow.
What happens when you die in Slither.io?
When players die in Slither.io, they'll have to restart the game as a tiny snake, climbing their way up to size again by tracking down more orbs and food as they scuttle along the ground.
Want more codes for your favorite games? Check out our other articles on Pro Game Guides, like Roblox Minerblocks Codes (May 2022).