Keep an eye out during major seasonal sales (like Black Friday) when Unigine occasionally offers discounts on their benchmark suite. Conclusion
Yes, that is the secret. In Unigine Superposition (Free Edition), the default hotkey to launch the benchmark is . Simply pressing a letter key does nothing. The "Any key" prompt is a legacy UI joke, but the actual functional key is F9 (or F10 to toggle UI). unigine superposition key
Once purchased, you download the Basic edition and enter your key in the "Upgrade" or "About" section to unlock the Advanced or Pro features. Keep an eye out during major seasonal sales