Robuta

https://elisoftware.org/wiki/Jet_(Atari_ST,_3_1/2%22_Disk)_subLOGIC_-_1988_USA,_Canada_Release Jet (Atari ST, 3 1/2" Disk) subLOGIC - 1988 USA, Canada Release - Eli's Software Encyclopedia atari stjetdisksublogicusa