DOTS Tiny will have a tiny physics implementation which is probably Unity DOTS physics. Will there be an option for Havok physics in the DOTS Tiny seeing as it's all DOTS based now?
Just a guess but I would think adding Havok would make your project quite large and not Tiny. E.g. the Havok dll can weigh in at 6,702,080 bytes. (6.7 Mb)
@Saurabh7SSR if project tiny would be compatible with DOTS physics then yes. Other wise I am skeptical.
With Havok DOTS a WebGL builld minimum size is ~11MB. From the Facebook Instant Games page: What's the file size limit (in MB) for my game? While we don't impose hard limits on game size, we do recommend that the initial download time not exceed 5 seconds. You can host game bundles of up to 200MB, but only require necessary files in the initial load. I guess it's the 5 seconds download time that needs <1MB build. Maybe Havok can be bundle download later? From all Unite talks it is very likely DOTS Unity Physics. Just a stripped down version of it in first preview. Also they said 1-2 months for 1st preview and Roadmap?