Germany
- Entwicklung Series Entwicklung series, a comprehensive redesign of German armor from small tracked vehicles to a 100-ton super-heavy tank. Only a single E-100 chassis was completed
- Leichttraktor, pre-war light tank, four built
- Neubaufahrzeug, pre-war heavy tank design, five built
- Panther II, development of the Panzerkampfwagen V "Panther". A single chassis was built
- Panzerkampfwagen VII "Löwe", a super-heavy tank project that never reached prototype stage
- Panzerkampfwagen VIII "Maus", a super-heavy tank. Two prototypes built
- Panzerkampfwagen IX & Panzerkampfwagen X Paper project
- Landkreuzer P. 1000 Ratte; paper project
- Landkreuzer P. 1500 Monster; paper project
- 12.8 cm Selbstfahrlafette auf VK 30.01(H) "Sturer Emil" - tank destroyer; 2 built
- Heuschrecke 10, Krupp's design for a new self-propelled artillery gun
- VK 3001 (P) - medium tank; paper project
- VK 3002(DB) - prototype medium tank; one built
- VK 4501 (P) - Porsche Tiger tank; 100 hulls built, 90 converted to Ferdinands, one Tiger (P) built, 3 Bergepanzer Tiger (p) and 3 Rammtigers built.
- Dicker Max, two prototypes built
- VK 20, medium tank proposed to replace the Panzer III and Panzer IV; paper project
- Panzer-Selbstfahrlafette II, half-track tank destroyer; two built
- Panzer-Selbstfahrlafette IV Ausf. C, SPG, 3 built
- Geschützwagen Tiger, self-propelled artillery gun; one partial prototype built
- VK 1602 Leopard, reconnaissance tank; paper project
