Evidence map›Paper›PMID 41493466›Full record

ArticleJournal of behavioral addictions2026

Dark patterns in online gambling: A scoping review and classification of deceptive design practices.

Jack McGarrigle, Jessica Smith, Joe Griffiths, Jamie Torrance, Martyn Quigley, Simon Dymond

Abstract readScoping Review
In one paragraph

Article in Journal of behavioral addictions, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Jack McGarrigle1School of Psychology, Swansea University, United Kingdom.ORCID https://orcid.org/0009-0004-1832-4510
Jessica Smith1School of Psychology, Swansea University, United Kingdom.ORCID https://orcid.org/0009-0001-7810-7356
Joe Griffiths1School of Psychology, Swansea University, United Kingdom.
Jamie Torrance1School of Psychology, Swansea University, United Kingdom.ORCID https://orcid.org/0000-0001-5001-4126
Martyn Quigley1School of Psychology, Swansea University, United Kingdom.ORCID https://orcid.org/0000-0003-4342-1369
Simon Dymond1School of Psychology, Swansea University, United Kingdom.ORCID https://orcid.org/0000-0003-1319-4492

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and aims: Dark patterns are online platform design features that influence consumer behaviour to the advantage of the interface designer. In online gambling, such designs may exacerbate gambling-related harms, particularly among vulnerable consumers. This study aims to provide the first scoping review of dark patterns in online gambling. Methods: Following established scoping review frameworks, we systematically searched databases and grey literature using terms related to dark patterns and online gambling. The review protocol was preregistered. Results: Included articles (n = 16) addressed a variety of gambling-related dark patterns: hidden gambling management tools, inducements with complex conditions, minimum balances required to withdraw funds, unnecessary frictions involved in closing an account, high defaults in stake, deposit, reality check and deposit limit settings, and urgency-based gambling prompts. To address inconsistent terminology across studies, we synthesised existing literature by mapping identified dark patterns to a transdisciplinary framework, providing greater conceptual clarity and direction for future research. Discussions and conclusions: The potential for harm from dark patterns is evident, yet evidence on behavioural impacts is limited, hindered by restricted access to proprietary gambling operator data. Research in this area is sparse and fragmented, often using inconsistent terminology. Future studies should empirically investigate the influence of dark patterns on consumer behaviour, especially among vulnerable populations, and evaluate safer design alternatives. We recommend mandating gambling operators to collaborate with researchers to assess platform safety, and shifting the burden of proof onto operators to demonstrate that their platforms prioritise consumer safety and foster responsible gambling environments.

Indexed as

Consumer BehaviorDeceptionGamblingInternetHumansconsumer protectiondark nudgesdark patternsgamblingplatform designsludge

Identifiers

PMID41493466
PMCPMC13132400

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.