- Image Puzzle!
- The DaVinci Code
- Before Submitting A New Game!
- Confusion!
- Zest Online Riddle
- Badpron
- Dr. Azumi's secret book
- The Great Big Quiz - I made it!!!!!!!
- God Tower
- Treasure Hunt (Vibration 13)
- The Incident
- Who Killed Marilyn Spencer?
- Clever Waste Of Time
- The Python Challenge
- Mazito-3
- Ankh
- General Waste Of Time
- My riddle
- The "Bechukant Solvit" Riddle
- Googlewhacked
- Mysterious Pron
- The Never-Ending Riddle
- Norpton
- Between Something and Nothing
- Tomb of Mystery
- The Unnamed Quest
- Murder Without Escape
- Criss Angel online riddle
- My Ages
- The Enigma Puzzle
- Mr. Logic's "Podcast Riddle"
- Klueless
- Riddles of Riddles!
- Riddles of Riddles A-Z
- Maladjusted
- The Wicked
- Web-Hopper Riddle
- The PuzzleFiles
- The ShadowRose Riddle
- EmilyRiddle
- Riddles of Riddles Jr.
- uTu
- ERiddle 2
- Fear Country
- Intelligence test - part 1
- Mr. Logic's Hidden Riddles
- Intelligence test - part 2
- Intelligence test - part 3
- Cryptos
- Mathical
- The Wicked Junior
- The Ultimo Puzzle
- P4X the Riddle
- Cambrian Code
- Danaq
- Orio's Riddle
- Rules!
- Qwizard 1
- Qwizard 2
- Qwizard 3
- Qwizard 4
- EmilyRiddle 3
- Totally Tricky
- Mr. Logic's Secret Riddle!
- Unlock The Truth
- EuGame: Eugy's Internet Game
- Trumalia Riddles
- Grifos
- Bored Riddler's Riddles I: Extremely Simple Riddle
- Best Riddle
- Best Riddle 2
- Best Riddle 3
- Last Riddle
- Middle Riddle
- Riddles of Riddles 100
- Notspam
- The First Door
- Bored Riddler's Riddles II: Continuous Riddles
- Dracula's riddle
- Emily Riddle 4
- Lost 2 Game
- CodeBreaker Game
- Amazing Web Race
- Buhuhu - one hard riddle
- The Crux
- Amateur Riddle
- Eriks Webquest
- Qwizard 5
- Guess
- Nfshost Riddle
- Arrogant Bastard's BASTARD Month Riddle Contest
- Weffriddles
- From A to CraZy
- Amateur Riddle 2
- The final answer to everything
- Nameless Riddle
- Princess Nat's Riddle Pages
- 1-Page-Oneder
- Neutral Riddle
- Sam Davyson's Web Riddle
- Quizomatic
- The Riddle Game
- Cybertrek
- Sammy's Riddle
- The Riddle For Losers
- My 1st Riddle
- Movie Trail Riddle Game
- Intelligence Test - part 4
- The Regular Riddle (My New Riddle Game)
- Benazio's Riddle 2
- Benazio's Riddle
- Crazy Riddle
- Murph_3's Wako Riddle
- The Game - Stage 1
- The Game - Stage 2
- Crazy Riddle 2
- Nortpron
- Power Riddle
- The Riddlers Path
- Antiriddle
- The Kelly Clarkson Riddle
- Riddel Diddel
- Dark Sun
- FS Riddles
- RiddleGates
- Ohdi's puzzle
- Elddirdrah
- Color_Riddle
- Try This One On For Size
- Matrix Riddle
- Riddle Game (aka Riddler)
- Funny Farm
- VK'S Ryddle
- Smiling Mona
- Cracked Riddle
- Universal Riddle
- The Great URL Adventure
- Mystery Quest
- Dio's Trail
- Webtrek
- Riddles in France !
- Computer Riddle
- Antiriddle: Chapter 2
- Bizfantast
- The Second Door
- MetaRiddle
- Brain Teaser
- Phils Riddle
- The ROOMZ
- Crazy Riddle 3
- The DaVinci Code Riddle
- Adventure Quest
- Mad Cow Riddle
- Enigmes a rendre fou (Riddles in French)
- Ultimate Riddle
- Turkishriddle
- Amazing Web Race: Final Route
- The Amazing Online Race
- Nick's Riddle
- Around The World
- Utu Riddle
- JackPron
- Riddles of Riddles: Reloaded
- Turkish Riddle - 2
- Zeal Riddle
- Tecak
- NeverEnding Riddle
- Mmoo's Riddle
- Two brains one riddle
- Jjalsop Riddle
- HTML Game
- Image Puzzle 2
- RiddleGame
- RiddleGame 2
- Wayfarers Riddle (Base)
- Wayfarers Riddle (Puzzle Levels)
- Wayfarers Riddle (Mysterious Levels)
- Around The World in 7 Days
- Search for the Myth Enigma
- Riot's Quest
- Penguinsriddle
- Enigma Project
- Ouverture Facile
- Nimwege
- Alral's Riddle
- RiddleGame Three
- Creepy Riddle
- Riddle Me This
- Unsolved: 13
- Dschingis Riddle
- Bataata
- Law keeper's Riddle
- Mystery's Riddle 1
- Star Quest
- Final Quest
- The Riddlers School
- Coppy's Riddle Game
- Mystery's Riddle 2 - Advanced Alien School
- Onyx Riddle
- BrainTricks
- Hirak's Online Riddle
- Freak's Riddle
- My Cool Riddle
- BrainTricks 2
- Wiro's Riddle
- Minus Riddle
- TSG's Riddle
- Mad Cow Riddle 2
- The Riddler
- Respirandos Riddle
- Enigma Project 2
- RidAze
- The Memory Palace
- Cynapse2k7-The Davinci code
- No Name Just :Riddle
- Mr. Logic's Dragon Drop Riddle
- Uberriddle
- Pink Riddler
- Sixteen Steps
- Rdavio1's Online Riddle
- Hunting Ground
- Tensteps
- Mythical Riddles
- Awesome Riddle
- Masquerade 1
- Think Blast Revolution
- MrMookie's Riddle
- Masquerade 2 - We are back
- Cynapse 07
- Puzzle Hacker
- Kasi Riddle
- MrSnooky's Riddle
- 613 Riddle
- Marv Riddle
- Puzzlehacker 2
- Respirandos Riddle-Duo
- Bubbles In A Meadow (riddle)
- Tim Tang Test
- Bg's Riddle
- The Great Cave riddle
- Jeoffreydonut Riddle
- The Locked Box
- MyRiddleNameIsHi
- Riddle inside a riddle
- Awesome Riddle 2
- Nick's Riddle
- Torment
- thisismyriddle
- Kristi's Riddle
- The Riddler Dude's Riddle