they've been savvy enough to keep everything else as hidden as possible, no frontend analytics, no external links, no hidden site, even their bespoke font is named "fontx" in their CSS and "CSVRS" in the font file1
$ whois csmashvrs.com | grep Organization
Registrant Organization: RapidEyeMovers Ltd.
Admin Organization: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Trade mark number UK00003777612, registered to "Rapideyemovers Ltd.": "VRS"

Rapideyemovers Ltd.'s director is registered as Jorg Stanislaw Tittel, and,
That countdown is to this date:
function U() {
const e = +new Date,
s = +new Date("February 13, 2023 16:00:00 GMT+00:00");
cosmicsmash.com now does this:
$ curl -I cosmicsmash.com
HTTP/1.1 301 Moved Permanently
[…]
Location: https://www.csmashvrs.com
EDIT: Further, we can probably derive some more key players here from this Twitter search, so we've got:
- Jorg Tittel (Director)
- Arkotype/Dan Clark (Designer)
- Cory Schmitz (Designer/Font Designer)
- Joseph Whitehead (Programming)
- Rory Pearce (Art)
- Imogen May (Visual Director)
- Jordan Iveson (Animation)
- The Comet is Coming (Music?)
- Soccer96 (Music)
- Ken Ishii (Music)
So, UK-developed Cosmic Smash spiritual successor with several musicians involved… possibly VR-enabled… genuinely a good idea, wow
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OTF headers reveal the font to be designed by Cory Schmitz who's been prolific lately