amnesia game, horror theme, dark atmosphere, abandoned castle, protagonist with memory loss, eerie corridors, flickering torches, puzzle-solving, stealth mechanics, monsters lurking, psychological terror, intense soundtrack, immersive gameplay, first-person perspective, interactive objects, survival horror, dimly lit rooms, historical setting, Lovecraftian elements, sanity system, ominous shadows, heart-pounding moments, detailed textures, cloth physics, realistic materials, high tension, gripping story, atmospheric lighting, 3D sound design.