Cl. 6. All contest entries must be shared or hosted on one of the following platforms: Scratch (TurboWarp accepted), itch.io, GameJolt (web playable with HTML), or Newgrounds, regardless of the platform or software used to create the game. Failure to share through any of these platforms will result in disqualification.
it only specified that it CAN be posted to the scratch website, and the software used to make the game doesnt have to be something specific