The development history of the Ratte originated with a 1941 strategic study of Soviet heavy tanks conducted by Krupp, the study also giving birth to the Panzer VIII Maus super-heavy tank.
Sejarah perkembangan LandKruezer berasal dengan studi 1941 strategis tank berat Soviet dilakukan oleh Krupp, studi juga melahirkan tangki Panzer VIII Maus superheavy.