This research paper delves into the intricate relationship between game design and psychology, with a concentrated focus on ‘Gacha’ mechanics prevalent in the gaming sector. Originating from Japanese toy vending machines, the Gacha system has grown to be a powerful tool in shaping player behaviour. The paper illuminates the conceptual framework underlying Gacha mechanics, emphasizing its capabilities in manipulating player actions and decisions. Through an exhaustive examination, this study presents a detailed understanding of its psycho-manipulative attributes and supports its findings with specific case studies from the gaming industry. The work serves as a comprehensive exploration of the influence and ramifications of Gacha mechanics in contemporary game design.

In the annals of psychological research, the Zeigarnik Effect stands as a seminal concept that was astutely discerned by the distinguished Russian psychologist, Bluma Zeigarnik, in the 1920s. Her pioneering work brought to the fore a captivating revelation: the human psyche demonstrates a proclivity to retain and ruminate upon unfulfilled tasks with greater acuity than those that have reached fruition. The core essence of this effect reverberates through the cross-section of both psychology and product design, intimating profound implications in the realm of user engagement, motivation, and overall experience.