Deceptive design features of online gambling platforms with Philip NewallDeceptive design features of online gambling platforms with Philip Newall
Addiction Audio
Dr Tsen Vei Lim talks with gambling researcher Dr Philip Newall about deceptive design features in online gambling platforms and how they can worsen gambling harms. The conversation outlines key concepts like dark nudges and sludge, and reflects on what this means for policymakers, industry and people who gamble.
25:13•22 May 2026
Dark Nudges and Sludge: How Online Gambling Platforms Keep You Playing
Episode Overview
- Online gambling platforms use design features such as dark patterns, sludge and dark nudges to keep people gambling longer and spending more.
- Behavioural science principles originally promoted for public good, like default options, can be repurposed by companies to make users worse off.
- Policy responses move slowly compared to rapid industry innovation, creating a “whack-a-mole” problem for regulators trying to limit harmful design.
- State-owned gambling operators in some countries may be better placed to test and implement genuine “nudge for good” strategies.
- For users, building a more reflective understanding of how these platforms are designed can help reduce the risk of being drawn into harmful gambling behaviour.
“All I really want is to tilt the tables less unfairly.”
What can we learn from those who have battled addiction to gambling products designed to hook attention and money? This conversation between Dr Tsen Vei Lim and gambling researcher Dr Philip Newall zooms in on the “deceptive design features” built into online gambling platforms – and why they matter for harm reduction.
Aimed at researchers, clinicians, policy professionals and anyone curious about how digital products can fuel addiction, the chat breaks down three key ideas from Newall’s paper: sludge, dark patterns and dark nudges. He explains that these terms all describe design tricks that “make people worse off”, such as pre-ticked marketing boxes, high default spending limits or friction-filled cancellation processes.
You’ll hear how lessons from classic behavioural science, like Thaler and Sunstein’s work on nudges, are being flipped by commercial operators to keep people gambling longer and spending more. Newall links this to the post-2007 boom in mobile gambling after the UK’s Gambling Act 2005, describing today’s environment as “an unprecedented amount of gambling that’s available to us electronically”.
The episode also weighs up what this means for policymakers stuck in a “whack-a-mole” race with fast-moving industry innovation, and why state-owned operators in some countries might be better placed to test “nudge for good” approaches. For everyday users, Newall is candid about how hard it is to stay sceptical in such slick digital spaces, urging people to “educate yourself in a slightly more reflective manner if you can”. Underneath the academic detail sits a clear personal mission.
As Newall puts it, “All I really want is to tilt the tables less unfairly… I just want a slightly fairer game.” If you or the people you support use online gambling, could understanding these design tricks be the next step in changing how you look at those platforms?

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