Open Sonic v0.1.4 is released. Open Sonic is a free 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.

Main features:
* It's portable! No installation is required!
* Sonic-style physics (360° movement engine)
* Available in 9 languages: English, Portuguese, French, Polish, German, Czech, Dutch, Indonesian, Italian
* 2 levels + innovative items + extras
* You can create your own levels using the built-in level editor
* You can make your own custom items, enemies and bosses using our object scripting system
* MODdable capabilities
* Good performance even on old computers*

Open Sonic v0.1.4 Changelog:
* Object scripting system: users are now able to create custom items, enemies and bosses
* Refactored the built-in item system and implemented MANY new items as well
* New translations: Dutch, Indonesian, Italian. Dropped the Spanish translation
* New shields: fire shield, water shield, thunder shield, wind shield, acid shield
* New user-made songs: title screen, boss, invincibility, Blue Ocean, Exotic Paradise
* New user-made sound effects: jump, shields, springs, checkpoint orb, spikes and a few others
* New user-made graphics: item boxes, shields, spring pads, DNA doors, bumpers and a few others
* Refactored the background system. Now, it's also possible to create foregrounds
* Refactored the audio system. Dropped .mod/.it/.xm/.s3m support (use .ogg for musics instead)
* Upgraded to Allegro 4.4. Added .jpg image support
* Lots of other refactorings at the core of the engine
* Bugfixes and other optimizations

Download: Open Sonic v0.1.4
Source:Here