Playtech has been operating since 1999, making their catalogue one of the largest and most fragmented in the industry. Half of their database consists of legacy five-reelers and the massive Age of the Gods progressive network. The other half is driven by the modern independent studios they have acquired over the years, like Rarestone and Ash Gaming.
Because of this umbrella structure, there is no single “Playtech math model.” If you load a classic title, you get traditional, steady casino math. If you load a modern release from their Mega Fire Blaze series, you are dealing with highly aggressive Hold & Respin engines that behave entirely differently. When browsing their games, checking which sub-studio actually built the math is just as important as looking at the RTP.