Systematic Review Maps Gamification Features in Digital Smoking Cessation Interventions

A systematic review investigating gamified digital smoking cessation tools has systematically categorized 56 gamification elements across nine distinct interventions using the Octalysis Framework, demonstrating that developers heavily rely on progress tracking and achievement mechanics while rarely incorporating elements of surprise or uncertainty. Published in Frontiers in Digital Health by researchers from the University of Nottingham and Prince Musaid bin Abdulrahman University, the synthesis examined thirteen peer-reviewed studies published between 2016 and 2024 across the United States, the United Kingdom, and Australia. The investigation evaluated how game design elements deployed in non-game health contexts support participant engagement and assessed reported smoking cessation results. The authors established that while engagement metrics were heterogeneous and frequently favorable across predominantly smartphone-based interventions, measurable smoking cessation outcomes remained mixed across the subset of trials that formally monitored tobacco abstinence.

Tobacco use remains a leading cause of preventable morbidity and mortality worldwide, causing more than seven million deaths each year, with approximately 1.25 billion adult tobacco users globally. Although traditional cessation strategies involving pharmacotherapy and behavioral counseling possess documented efficacy, they are frequently constrained by accessibility barriers, medication affordability, fear of pharmacological side effects, and limited provider resources. Digital health applications delivered via smartphone software offer scalable, accessible, and continuous support that can be tailored to user behaviors. However, user engagement with mobile applications commonly diminishes over time. To counter this attrition, digital interventions have increasingly integrated gamification, defined within the review as the application of game design elements in non-game contexts, distinguishing these modular behavioral tools from standalone serious games designed as complete interactive games.

To rigorously identify and structure the psychological mechanisms embedded within digital cessation software, the review team searched seven bibliographic databases from inception through April 16, 2026: MEDLINE, PsycINFO, Embase, CINAHL, Web of Science, Epistemonikos, and Scopus. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and Synthesis Without Meta-analysis reporting standards, two reviewers independently screened citations and extracted data. Methodological risk of bias was appraised using design-specific Joanna Briggs Institute critical appraisal instruments spanning randomized controlled trials, quasi-experimental evaluations, qualitative studies, and analytical cross-sectional studies. Because the identified evidence base encompassed substantial heterogeneity in study designs, comparison conditions, measurement tools, and assessment intervals, the investigators synthesized findings narratively without quantitative meta-analysis, subgroup modeling, or formal certainty-of-evidence grading.

The primary organizing model for the structural synthesis was the Octalysis Framework, an analytical behavioral matrix that groups motivational mechanics into eight core drives: Epic Meaning and Calling, Development and Accomplishment, Empowerment of Creativity and Feedback, Ownership and Possession, Social Influence and Relatedness, Scarcity and Impatience, Unpredictability and Curiosity, and Loss and Avoidance. To prevent artificial inflation across published descriptions of identical mobile applications, the reviewers counted gamification elements at the intervention level, mapping each individual element to the single core drive judged to be most central to its operational function. Across the nine interventions assessed in the thirteen eligible papers, all eight core drives were represented, yet the distribution of techniques across these eight motivational channels showed notable disparities.

The analysis revealed that Development and Accomplishment, driven by tangible progress and verified achievement, formed the overwhelming foundation of gamified cessation interventions, accounting for 29 of the 56 identified element occurrences and appearing across all thirteen studies. Interventions operationalized this drive through structured goal setting, multi-stage difficulty leveling, challenge quizzes, and points-based rewards. For example, Cigbreak incorporated thirty progressive game levels alongside unlockable trophies and stars, while Kwit and Kwit 2 integrated progress tracking dashboards linked to tiered achievements. Inner Dragon utilized an experience-point framework tied to a pet dragon that evolved every seven days as an overt visual surrogate for prolonged abstinence. Similarly, QuitBet employed daily financial deposit returns alongside entry into a grand prize pot, Take a Break utilized challenge quizzes that yielded bronze, silver, or gold medals redeemable for gift cards, and Quit Genius structured its cognitive behavioral program across four sequential stages comprising 39 distinct challenge steps.

In marked contrast to accomplishment mechanics, the core drive of Unpredictability and Curiosity was the least represented motivational drive across the literature, containing only a single element documented in two papers evaluating Inner Dragon, which provided automated surprise gifts to introduce novelty and spontaneous engagement. Scarcity and Impatience appeared in only two interventions across four studies, exemplified by Quittr restricting access to periodic virtual currency bonuses and Learn to Quit enforcing daily lesson unlocking to prevent users from consuming more than one module every twenty-four hours. Epic Meaning and Calling appeared in two interventions, Quit Genius and Learn to Quit, which embedded values-guided metaphorical journeys linking smoking cessation to broader life purpose. Ownership and Possession accounted for three elements across two platforms, featuring virtual cosmetic dragon customization in Inner Dragon and town construction fueled by virtual QuitCoins in Quittr. Loss and Avoidance appeared in three applications, incorporating escalating abstinence rewards that reset following a slip in Inner Dragon, thirty-dollar deposit contracts that risked personal money in QuitBet, and module counters that reset to zero if participants missed a daily lesson in Learn to Quit.

Empowerment of Creativity and Feedback was the second most prevalent category, comprising ten elements across five interventions. This motivational drive focused on active experimentation, distraction mini-games, and behavioral feedback loops. Cigbreak engaged users in interactive gameplay requiring them to tap and break cigarettes while actively sparing falling vegetables, supplemented by dynamic feedback on gameplay scores and real-world smoking patterns. Inner Dragon included craving-distraction memory games alongside care-meter feedback that registered increased calmness when users petted their virtual dragon or improved nutrition when feeding it. Take a Break incorporated third-party relaxation mini-games alongside automated positive feedback following challenge quiz answers. Quittr featured a clutter-clearing timed visual search game called Hidden Object alongside Tappy Town, an open-ended city construction simulation, while Learn to Quit deployed interactive skill-building exercises tied to immediate corrective feedback on practice quizzes.

Social Influence and Relatedness was incorporated across six element occurrences in five interventions, leveraging social feeds, comparative leaderboards, and peer interaction. Take a Break and QuitBet both used competitive leaderboards to display relative participant standings, with QuitBet also hosting an in-app social discussion feed moderated by daily host prompts. Cigbreak and Kwit 2 integrated external sharing mechanisms linking user milestones to Facebook or X, formerly Twitter. However, observational and qualitative data in Kwit 2 revealed that participants were frequently reluctant to publish cessation struggles onto broad public social networks, voicing a strong preference for closed peer interactions with individuals undergoing similar quit attempts. Furthermore, the synthesis noted that only three studies explicitly based their gamification architecture on formal taxonomies or frameworks: Edwards and colleagues applied Cugelman’s taxonomy for Cigbreak, White and colleagues utilized Marczewski’s biphasic gamification framework for Inner Dragon, and Bindoff and colleagues referenced Weiser’s taxonomy during the design of Quittr.

Engagement outcomes evaluated across the nine interventions were organized into four categories: quantitative usage metrics, content completion and element use, user satisfaction and usability ratings, and psychological indicators. Across trials recording objective software analytics, gamified features frequently augmented app interaction volume. In an evaluation of Inner Dragon within the Smoke Free app, participants in the gamified arm completed an average of 29.6 sessions over 14.3 active days compared to 24.3 sessions over 11.9 days among controls, accompanied by a higher core-feature use index. In Quittr, users provided with the full gamified application recorded 3,502 seconds of engagement compared to 797 seconds among controls, although this divergence was almost entirely attributable to time spent in the Tappy Town mini-game, without producing differences in standard cessation content utilization or user retention. Across other interventions, user satisfaction was generally elevated, with 84 percent of Cigbreak respondents and 95 percent of QuitBet participants reporting willingness to reuse or recommend the tools, while Learn to Quit achieved a System Usability Scale score of 85.2 compared to 78.4 for the standard QuitGuide application.

Formal smoking cessation outcomes were reported in seven studies, revealing a mixed evidentiary picture characterized by critical methodological limitations. Self-reported seven-day abstinence at four weeks reached 30 percent in an observational cohort evaluating Kwit, where greater level and achievement completion correlated with increased abstinence odds. In the Inner Dragon randomized trial, intention-to-treat analyses revealed no statistically significant between-group differences in self-reported seven-day or thirty-day point-prevalence abstinence at two months, nor in cotinine-verified seven-day abstinence, although repeated one-day abstinence was higher among gamified users. The review authors concluded that while gamification clearly supports user interaction, systematic evidence demonstrating that elevated engagement directly translates into enhanced long-term smoking cessation remains limited.

Subject of Research: Gamification elements and engagement outcomes in digital smoking cessation interventions

Article Title: Gamification to enhance engagement in digital smoking cessation interventions: a systematic review using the octalysis framework

Article References: Alanazi, F., Aljuraid, R., Alzughaibi, S., Konstantinidis, S. T., & Blake, H. (2026). Gamification to enhance engagement in digital smoking cessation interventions: a systematic review using the octalysis framework. Frontiers in Digital Health, 8, Article 1995984. https://doi.org/10.3389/fdgth.2026.1995984

Image Credits: AI Generated

DOI: 10.3389/fdgth.2026.1995984

Keywords: smoking cessation, gamification, digital health, Octalysis Framework, mobile interventions, behavior change, user engagement, public health, enhance, engagement, digital, smoking