Developer 
Features Hidden Kingdom is a casino slot game from Caleta Gaming with a 5-reel layout and 40 paylines. The published RTP is 93.17%, and the bet range runs from 0.4 to 200. A demo version is available for players who want to play for free and practice before playing for real money.
The game page identifies Hidden Kingdom as a slot with a generic structure, designed around standard reel-based play. Information available on the page highlights the core game format rather than a complex feature set, with the main focus on the payline system and stake range.
Caleta Gaming is listed as the provider, and the page also shows Malta Gaming Authority licensing information. For players searching for a Hidden Kingdom slot demo, the free version offers a simple way to review the game before making a real-money choice.
