The website has a page about a community license [0].

> VMS Software Inc. is excited to announce the availability of the OpenVMS Community License that allows the OpenVMS community members (hobbyists, non-commercial software developers, and others) to obtain an OpenVMS license free of charge.

> OpenVMS x86 licenses will be available later as more stable versions of OpenVMS are released for this architecture.

[0] https://vmssoftware.com/about/news/2020-07-28-community-lice...