Saint Kotar: The Yellow Mask is a free demo that serves as the prologue to the full game Saint Kotar. Developed by Red Martyr Entertainment, this adventure game takes place in the ancient town of Sveti Kotar, hidden in the mountain region of Croatia. The game follows the story of Benedek Dohnany and Nikolay Kalyakin as they navigate a series of macabre murders that allegedly involve devil worship and witchcraft.

The game's hand-painted art style is distinctive and perfectly captures the game's dark mood. The eerie original soundtrack adds to the game's psychological horror, making it a truly immersive experience. The gameplay is classically inspired point and click adventure, allowing players to switch between playable characters and different realities. The puzzles are challenging and rewarding, and the plot is captivating and mysterious. The demo provides a glimpse into the vast and foreboding world of Saint Kotar, making it a must-play for adventure game fans.