Octane Render For Cinema 4d R20 Free Download [portable] File

OTOY offers a "Prime" version that is free for personal and commercial use.

Access to the full DCC plugin ecosystem (including C4D R20), unlimited network rendering, and cloud rendering services. Important Compatibility for R20 Octane Render For Cinema 4d R20 Free Download

This is what most people mean by "free download." These are distributed via torrents, Telegram groups, and file-hosting sites (Filecrypt, Uploadrar, etc.). OTOY offers a "Prime" version that is free