Evidence map›Paper›PMID 42891958›Full record

ArticleEuropean addiction research2026

Widespread Suspected Illegal Advertising of Paid Loot Boxes and Social Casino Games in Belgium: Empowered by the EU Digital Services Act to Assess Compliance Using Meta's Ad Repository.

Leon Y Xiao, Elena Petrovskaya, Nicole Khoo, Maarten Denoo, Amanda Roberts

Abstract read
In one paragraph

Article in European addiction research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Leon Y XiaoSchool of Creative Media, City University of Hong Kong, Hong Kong, Hong Kong, China, leon.xiao@cityu.edu.hk.
Elena PetrovskayaCollege of Health and Science, University of Lincoln, Lincoln, UK.
Nicole KhooCollege of Health and Science, University of Lincoln, Lincoln, UK.
Maarten DenooMedia Culture and Policy Lab, KU Leuven, Belgium.
Amanda RobertsCollege of Health and Science, University of Lincoln, Lincoln, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPaid loot boxes and social casino mechanics are gambling-like products inside video games that provide random rewards in exchange for real-world money. These products may cause harm to vulnerable consumers, e.g., children and adults experiencing gambling harms. Most countries do not presently regulate these mechanics as gambling because the random rewards do not possess real-world monetary value as defined by law. Uniquely, Belgium's gambling law does not have that requirement, where paid loot boxes and social casinos therefore constitute unlicensed and illegal gambling, and providing these products is a criminal offence. However, this "ban" has not been enforced due to the gambling regulator lacking resources, so these products remain widely available. We investigated whether, beyond failing to remove these products from the Belgian version of app stores, companies are also paying to advertise games containing them on social media to specifically attract Belgian users, which would constitute an additional crime of advertising illegal gambling.

methodsWe gained access to demographic-based (country, age, and gender) targeting and reach data through the EU Digital Services Act, which requires very large online platforms (e.g., Instagram and Facebook) to provide repositories for all advertising shown and associated audience demographic data.

resultsConcerningly, 172 popular games with illegal paid loot boxes and social casino games were widely advertised in Belgium. We studied 1,574 ads, which were viewed over 4.5 million times by Belgian users, including conceivably 544,000 times by under-21s (estimated based on our hypothetical assumptions), who are not legally permitted to gamble online in Belgium.

conclusionPolicymakers should hold social media platforms and app stores accountable for conducting effective content moderation and ensuring illegal games and ads are not available to local users. More data access opportunities should be mandated by law in the EU and beyond to aid research and policy enforcement.

Indexed as

Advertising regulationBelgiumConsumer protectionEU Digital Services ActGachaGamblingLoot boxesSocial mediaTransparencyVideo games lawVideogaming regulation

Identifiers

PMID42891958
PMCPMC13690321

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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.