Before discussing how to download it, it is important to understand why someone would want R18 today:
As download links can change, for the most accurate and up-to-date information, I recommend the official Maxon website. Download Cinema 4d R18
– introduced in R18. Today, everyone uses it. But in R18, the MoGraph + Dynamics workflow was raw, fast, and predictable. Unlike newer versions, R18’s fracture cache system doesn't bloat your project files. Before discussing how to download it, it is
Before installing, ensure your hardware can support this legacy software: : 64-bit Intel or AMD processor with SSE3 support. Before discussing how to download it