You can download Open Sonic 1.0 from our software library for free. The program lies within Games, more precisely Adventure. The actual developer of the free software is Alexandre Martins. The following versions: 1.0 and 0.1 are the most frequently downloaded ones by the program users. The program's installer file is commonly found as opensonic.exe.
From the developer:
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.
You may want to check out more software, such as Sonic Robo Blast 2, Sonic Pi or Sonic Visualizer, which might be related to Open Sonic.