You can buy a permanent key on the Mediamond Buy Page .
No. Hill 1113 (Klyuch) is only available in the full version of DSJ4. There’s no legal free key. Demo mode lets you play a few hills only. If you see a site offering "klucz free," it's either fake or a virus. The game is cheap — just buy it once and you get all hills forever. dsj 4 1113 klucz free
It looks like you're referring to the ski jumping game (Deluxe Ski Jump 4) and a specific hill code "1113" — which in DSJ 4 terminology refers to the "Kloten" hill (often labeled as "1113 - Klyuch" or similar, depending on translation). The word "klucz" is Polish for "key" (as in a product key / license key). You can buy a permanent key on the Mediamond Buy Page
that may contain malware or viruses designed to steal personal data. Most "free key" lists found on forums or video descriptions are either fake or have already been blocked by the game's developer. How to Get the Full Version Legally There’s no legal free key
There is no legitimate "free key" or "klucz" for the full version of Deluxe Ski Jump 4 (DSJ4)