World of Tanks requirements for Marks of Excellence and Mastery badges. Target damage WN8, MoE calculator.

CS-63Tier 10, Medium tank

A medium tank intended as a replacement for the T-34-85. Developed in Poland, it combined available designs of the Soviet tank-building school with original ideas. However, in 1968, T-55 production was launched in the country and the project was discontinued. No prototypes were built.