The Great Lange, Marasaki Fox

Sonic Utopia is an experiment that not only tries to expand on Sonic gameplay in an intuitive way in 3D, but also aims to capture the best of Sonic's style and tie it together in a cohesive experience. Nearly everything in this demo, from art to sound to the gameplay engine, was made from scratch.

Feperd Games

Spark the electric jester is an action/platformer video game heavily based on best classics from the 16-bit era from both sides of the aisle.

Mors Games, Mario Fan Games Galaxy

Super Mario Flashback is a fan game developed by Mors. It is an unofficial game that tries to adapt features from both the 2D and 3D Super Mario platform games.

Nefault1st

Introducing a Sonic fan-game titled Sonic vs Darkness. This game is a remake of Nefault1st's first Sonic fan-game Sonic vs Darkness (2011), which began as a sprite-animated Sonic series project on YouTube. This demo features two playable characters Sonic the Hedgehog and Shadow the Hedgehog, and will include stages inspired by the ones from the original fan-game. Like the original version, the gameplay style is inspired by multiple modern Sonic games such as “Sonic Rush” and “Sonic Unleashed”.

SuperSonic68

Green Hill Paradise was born out of a question. A question that has all but torn the Sonic the Hedgehog community asunder: Can a Sonic the Hedgehog game be made such that it supplies a rich and robust experience in a fully 3D environment while staying true to its platforming roots? We are here to answer this question, not through an in-depth analysis video, not through a lengthy forum post, but through a fully playable video game experience. After 10 months of research and development we believe that, yes, Sonic can not only exist in 3D, but he can THRIVE in it. GHP's massive environment, winding paths, dynamic physics and hidden collectibles provide players with the freedom to choose where they want to go and how they wish to get there. The only limitations are the laws of physics and the player's own skill. No Spline paths. No Boostpads. No scripted cameras. No Boost Button. Gotta Go Fast? Earn it. This is Green Hill Paradise, reborn.

redhotsonic, Sonic Retro

A multiplayer-only ROM hack of Sonic the Hedgehog. Two players select a character (one being Sonic and the other being Tails) and both battle it out to try to gain as many hits on Eggman. The catch is that Eggman only gets destroyed when the timer runs down to 0 (unless it's a draw at that time, then, it will wait for another hit). The player with the most hits at the end of the timer wins. The player can also win if the other player dies before the timer runs out (if respawn mode is off).

Leemena

Sonic Gather Battle is a fan game based on the Sonic the Hedgehog series, featuring characters from Super Mario Bros, Mega Man X, and Bleach. It uses the Little Fighter MD-2 game engine and is a mix of arcade beat-em-up and multiplayer game. The game is best known for it's inclusion of a trojan. Not all of its effects are currently known, but it contains DRM that performs malicious actions to afflicted computers and makes the game itself unplayable. The game's creator apparently put the malicious code into the game to prevent people from ripping sprites from it, despite his attempts, these sprites were ripped and sent to the internet.

Team Survival

Sonic: Project Survival is a Sonic fan game that is Mega Drive-style Sonic platformer, with original zones based of classic games in the series.

Plom510

Lumiva Legacy is a fast-paced action platformer about three young multivas, Alex "Bingo" Rivero, Salamon Avery, and Roy Cruz, on their journey to stop D-Tech from invading their home of Neuo Town. The trio will have to put their skills to the test to conquer many challenges, defeat countless foes, and explore exotic locations with their various abilities and the help of Elemental Charges!

Meyer Games

In the game, you play as Lloyd, a monkey trained in sword-fighting, as he travels the world in search of the gorillas who kidnapped his friends. As you get closer to the enemy base, a thrilling secret becomes unraveled before your eyes and you won't want to miss one heart pounding moment.

Unlimited Trees

In this ROM hack Sonic is replaced for a playable Pepsi Can.

Doky

Sonic Souls is a Fan made creation, its been made with Unreal Development Kit (UDK).

ElectricSparx

RootLM

Core Dev Team

DJGameFreakTheIguana

Stritix

Sonic DL Adventure is a work-in-progress 2D fan-game inspired by Sonic Adventure and Sonic the Hedgehog (2006)

YESMEN10

Enjoy this fangame in 2d at full speed and platform. Eggman plans to attack with his air fleet and so that sonic and tails do not bother them he will teleport along with the Chaos Emeralds to places of the past.

Illias3000

TheTunisianSonicFan

Forgetfulness… Regret… Revenge… When he makes mistakes… what would a father get from his son? What would a son do to calm his sorrow? And what would a ruthless demon commit to feed his rage.. And to calm his hunger? Play the game and resolve the mysteries through a bunch of spooky environments, lots of obstacles, challenging puzzles & an intense terrifying gameplay!

Plom510

Emerald Team

Emerald Ties is an upcoming Sonic the Hedgehog fan game that features classic gameplay with a modern aesthetic.

GalaxySoftware

NewGame+

Daniel V Fangames (Daniel Villena)

Chishado Games

Sonic and Tails take on a new adventure and experience from the norm. In objective to stop Eggman to take control over all the flickies is this unusual world. Dr. Robotnik latest evil device suck Sonic and Tails to some other dimension taking everything they know with them. As the best option, they have to stop Dr. Robotnik and save all the flickies to bring them back to their original world!

YESMEN10

Mickey Grant

Yoritoshi

~Sonic for me and you~

Sonic Incursion is a fangame utilizing the Sonic GDK extension to the Unreal Development kit. Play as Sonic or Metal Sonic as you take the fight to the vicious Metallix Empire, before they convert all life into twisted mechanical beings! The gameplay is 2.5D for the regular stages, with certain Act 3's featuring singular gimmicks.

Sofox

Crat Strat

Crat Strat's Sonic 1 Hack is a ROM hack of the original Sonic the Hedgehog for the Sega Genesis, the hack is a technical "troll" designed to be as bizarre and nonsensical as possible. It features a completely broken and chaotic presentation where levels are filled with random, non-functional objects, ear-piercingly distorted music, and a "Crat Strat" character that is a poorly drawn, jittery version of Sonic.

Waisechef

GenesisDoes

GenesisDoes

Colonial Combat is the new, exciting, retro-styled, 1–vs–1, 2D, indie Unity3D fighting game for Windows 7 (and newer) PCs! The game is a fictional, comedic, non-violent fighting game with tongue-in-cheek satire and in-jokes about college life and surviving at a certain university, and based (loosely) on real campus settings as levels, and archetypal student types and figureheads as characters. The university’s mascot is Robert Morris (the financier of the American Revolution), and the football team is the “Colonial Crazies”, hence the title of the game.

GalaxyShad

The Mysterious Hatter

MetalSonic3 / Jargonfox

DarkVampireDee

Hammershot Games

ArcaniaCQ