The model is deliberately non‑pay‑to‑win : all core progression (puzzle levels, farm upgrades) can be achieved without spending money, though the process is accelerated for paying players.
When users add "free" to their search, they are looking for: new pusooy farmers daughter 3 free
If you could provide more context or clarify the original phrase, I'd be happy to help you create a more targeted and useful paper. The model is deliberately non‑pay‑to‑win : all core