Some may remember Sonic GEDA a while ago. Well, it's still in production and a great deal of progress has been done also. If no one remembers, the story is simple:
Dr. Eggman is planning to use the power of the seven emeralds to power his latest creation: codename "GEDA-X9". Being a Death Egg remodel, it will contain power that the Death Egg couldn't handle, but needs the chaos emeralds to work. It's up to Sonic, Tails, and Knuckles to stop him before he dominates Mobius.
Here's the current zone list: (some are working titles)
Zone 1: Gloom Valley Zone
Zone 2: Cosmic Speedway Zone
Zone 3: Oceanway Marina Zone
Zone 4: Scorching Desert Zone
Zone 5: Tymple Tantrum Zone
Zone 6: Mt. Mobius Zone
Zone 7: Electronic Laboratory Zone
Zone 8: Geda Egg Zone
Here are a few screenshots:
DEMO 03 TITLE SCREEN
GLOOM VALLEY (SONIC)
GLOOM VALLEY (TAILS)
GLOOM VALLEY (KNUCKLES)
DEMOS:
No current demos available...
Old Demos: Sonic GEDA v02 (This is very old and a tad bit buggy.)