Downloading sm-ssc 1.2.5 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. StepMania-SSE2.exe is the common file name to indicate the sm-ssc installer.
We recommend checking the downloaded files with any free antivirus. The software lies within Games, more precisely Music. The following versions: 1.2 and 1.0 are the most frequently downloaded ones by the program users. This free program was originally produced by the spinal shark collective.
From the developer:
An advanced fork of StepMania, focusing on improved speed, usability between game modes and theme and themer-related enhancements.
StepMania SSC (also known as "sm-ssc") is a new version of StepMania, primarily created for themers. It makes the assumption that most players play at home (either with a keyboard, dance pad/controller/other input device, or even an arcade machine).
You may want to check out more software, such as Santa Rockstar HD, which might be related to sm-ssc.