It's 21:55 Wednesday 10 February.
So far we have had over 120 views and only 2 contestants.
I am closing the topic.
The number to guess was 247.
Meaning @hvanderwegenis the one closest, he will get the license key by private message shortly.
But ... surprise, surprise ...
There's another license key still available thanks to @kingcoma, which will be provided to @Freemorpheme
dast's post in Synthetik, game crafted with Cinema4D - free license give away (DONE) was marked as the answer