by Emerald Mentality in
Fan Game

Sonic vs Darkness

By Nefault1st

Introducing a Sonic fan-game titled Sonic vs Darkness. This game is a remake of my very 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”. The download links are located above.

Disclaimer: This is a Non-profit fan-game project in development by Nefault1st. All registered trademarks and copyrights belong to SEGA® and Sonic Team®. “Sonic vs Darkness” is not affiliated with SEGA® or Sonic Team®.


  • – Two playable characters Sonic and Shadow
  • – Two playable stages (includes 2 acts & 2 bosses)
  • – Includes a tutorial
  • – Time Attack Mode
  • – Customizable Skills (limited to Aerial Skills)
  • – Custom key mapping
  • – Create up to 4 save files
  • – Sound Test
  • – Xbox 360 Controller support
  • – Music and Sound Volume Control
  • – Special FX/Reflection Options
  • – Fullscreen/Window Resizing
  • – Nintendo DS View Mode (Demo 1.5 Feature only)



General Credits

Creator & Programmer – Nefault1st

Graphics – Nefault1st & Goncas23

*game includes art assets from official Sonic games © SEGA®

Music – Nefault1st (nekkosu)

Stage Design – Nefault1st


The Sol Engine is derived from the first release of the Sonic Revival Engine.

Creator of the Sonic Revival Engine – Chaos Rush

Physics Engine – Damizean


> 2.0.1 (1/19/2016)

  • – Completing a stage for the first time in Time Attack mode no longer gives you an S Rank and 10000 points automatically
  • – Lowered total score expectations for all ranks in Sunlight Paradise Act 1 & 2
  • – Modified README + CONTROLS file
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