Games like Sonic 2099
Final Fantasy Sonic X: Episode 3
The third installment to the FFSX series.
Neo Sonic 3
Published in 2003, Neo Sonic 3 (aka Neo-Sonic 3: Revelations, Neo-Sonic 3: Armageddon) was an above-average platform title in its time.
Pokémon Nightmare Version: Invasion
Overnight, the world lost its connection to Azure City. It seems as if all citizens disappeared in a matter of hours. The public is scared of whatever happened. A terrorist attack? A failed experiment of the GENE Company? Or maybe aliens? A team of policemen go to Azure City. Only 4 of them come back after realizing that they can't find their colleagues. The investigation posed more questions than answers. After a month of silence, a young investigator named Jack heads for Azure City. His goal is to solve the case once and for all, no matter what it takes. Why is he trying to accomplish what a team of policemen failed to do? Why is he risking his life for such a feared case? Is he going to make it out alive?
Neo Sonic 2
2000, the year Neo Sonic 2 was released on Windows. Made and self published by Manic Team, this action game is available for free.
Sonic USB Online
Dive into a frantic race with Sonic, the legendary blue hedgehog! Defy the laws of physics through twisted worlds to save your animal friends captured by Doctor Robotnik. Get ready to jump, turn and cross all obstacles in this epic adventure to save the world and free the innocent creatures! Are you ready to roar, push the limits and become the ultimate hero? It's time to show your super speed and kick Robotnik's butt.
Open Sonic the Hedgehog
Open Sonic is an open-source game based on the "Sonic the Hedgehog" universe. It introduces a different style of gameplay called cooperative play, in which it's possible to control 3 characters simultaneously. Unlike most similar games, Open Sonic provides a greater level of interaction between the player and the levels. It's more than just a jump'n'run; the user must come up with some strategy in order to get through the levels.
Tails and the Quest of 100 Rings
Tails and the Quest of 100 Rings is a fan game created by Magnus Andersson (aka mightydillo). A demo was initially released publicly with one zone in 1997. It was only the second Klik & Play Sonic-based fan game to ever hit the internet. A completed version was released in mid-1998. A demo for this game was released in the Sonic Klik & Play Collection.
Chaotix of Tomorrow
Chaotix of Tomorrow is a fan made Sonic RPG made by Magnus Andersson using RPG Maker 2000, it stars the Chaotix crew featuring the return of Mighty. The game was later updated in 2006 to add better graphics and new features. The creator originally did not plan to create a sequel to the game, but a sequel was made anyway titled Twisted Mettle.
Sonic Boom
Sonic Boom was the first Klik & Play Sonic fan game to hit the internet. It was created by Martin Braid in 1995. The initial release had a virus, so it was taken down temporarily. It was re-released in 1996 by Magnus Andersson. Due to the open-sourced nature of Klik and Play, Sonic Boom later re-appeared in saxman's Sonic Klik & Play Collection along with demos of Sonic PC and Tails and the Quest of 100 Rings. It was also re-released as Rotor Boom by Ian Klukan, the Archie character Rotor Walrus replacing Sonic.
007: Sonic Secret Agent
007: Sonic Secret Agent is a video game published in 2003 on Windows. It's an action game, set in an arcade, platform and fan made themes.