Some authorized Maxon resellers may still offer R18 licenses and downloads for purchase, though availability is limited. For instance, sites like CDW Canada and B&H Photo Video historically listed R18 as an available product (often as an upgrade from an even older version), though most have since marked it as "No Longer Available". You can still check with specialized software vendors who handle legacy versions.
A quick search for "Download Cinema 4D R18" will yield dozens of websites offering free, cracked, or torrented versions of the software. Downloading from these unauthorized sources carries extreme risks: Download Cinema 4d R18
If you want R18 specifically for plugin compatibility (e.g., older versions of Octane Render, X-Particles, or Turbulence FD), consider these modern alternatives: Some authorized Maxon resellers may still offer R18
: Added the ability to create realistic iridescent surfaces like oil slicks or soap bubbles. Interactive Knife Tools A quick search for "Download Cinema 4D R18"
Easily separates overlapping clones automatically.