@neatchee First version of Tetris I played was on a C64. Kinda makes me curious of how the original looked. The Elektronika 60 wasn’t exactly a gaming computer :)
@yon@neatchee I have a vague memory that years ago the original code was released but it might instead be information from the programmer. That seems more likely now that I think about it.
@yon @neatchee perhaps this will help? https://lab.dyne.org/OriginalTetrisHowto