Addictive design in e-commerce: how online shopping platforms are gamified to make you spend more

Companies selling countdown timer software for e-commerce websites have, in documented cases, offered clients an option to make the timer reset every time a visitor reloads the page. The clock counts down to zero and restarts. The deal does not expire. When journalists investigating dark patterns in online retail asked directly about this, one industry source explained the situation plainly: fake pricing is illegal in most places, but fake scarcity is not particularly illegal (or so they thought).

That gap between what creates psychological pressure and what the law has historically prohibited is the space in which most of the tactics covered in this article operate.

The scale of the problem:

• 97% of websites and apps in the EU use dark patterns in some form
• India banned dark patterns in e-commerce platforms in 2023
• The OECD published a dedicated report on Dark Commercial Patterns in 2022
• Flayelle et al. (2023) in Nature Reviews Psychology identifies online shopping as one of six digital contexts with documented design-driven loss of behavioural control

Manufactured scarcity

"Only 2 left." "3 people are viewing this right now." "Offer ends in 00:12:43."

Princeton University researchers studying dark patterns found hundreds of countdown timers on retail websites indicating expiring deals on products that remained available at the same price after the timer reached zero. The "people viewing now" counter is generated algorithmically. Stock counts may or may not reflect actual inventory levels. The software tools that generate these elements do not require accuracy as a condition of use.

Research published in Cambridge University's Behavioural Public Policy journal tested scarcity messages experimentally. Both limited-quantity and limited-time messages significantly increased purchase impulse compared to neutral product pages. The mechanism is loss aversion: the documented tendency to feel the prospect of loss more acutely than the prospect of equivalent gain. The timer manufactures an imminent loss. The response it produces is a faster decision, one made before deliberation has time to interrupt the impulse.

Confirmshaming

Confirmshaming is the practice of labelling the opt-out option in a pop-up or upsell prompt in language designed to make declining feel unflattering.

Real examples:

• "No thanks, I prefer to pay full price"
• "I'd rather not protect my family"
• "No, I don't want to save money"
• "I'll pass on the discount"

These labels do not prevent declining. They attach a social and emotional cost to it. The OECD's Dark Commercial Patterns report flags confirmshaming as a widespread manipulative practice. The EU's Unfair Commercial Practices Directive prohibits techniques that use psychological pressure to impair consumer decision-making, and confirmshaming is increasingly cited in regulatory guidance as falling within that prohibition.

How subscriptions become traps

The pattern has a name in design research: the roach motel. Getting in is fast and low-friction. Getting out is engineered not to be.

Signing up for a free trial typically takes a few clicks and a card number. Cancelling the paid subscription that follows often requires:

• Navigating account settings to a non-obvious location
• Declining at least one retention offer
• Responding to guilt-inducing prompts about what will be lost
• In some cases, contacting customer service directly

The EU legally requires cancelling a service to be no more difficult than signing up for it. Enforcement remains inconsistent. In the United States, the FTC took action in 2023 against Amazon over its Prime cancellation process. Internal Amazon documents referred to the flow as the "Iliad Flow," a reference to its epic length. The company restructured the process following the complaint.

Adding steps to any action reliably reduces how often people complete it, and platforms that invest in seamless sign-up while making cancellation laborious are making a deliberate product decision.

Retargeting and manufactured urgency

Viewing a product without buying it generates data used to show you that product across other websites, in social media feeds, and in email. Retargeting is standard digital advertising practice. Its relationship to addictive design becomes visible when it is paired with artificial urgency:

• "That item in your saved list is almost out of stock" (for an item with abundant inventory)
• "Someone else is looking at this" (algorithmically generated)
• "Price drops tomorrow" (a manufactured deadline)

A 2023 study conducted across Finland, Sweden, and the United Kingdom found that loneliness was positively associated with online shopping addiction, and that problematic shopping frequently functioned as short-term emotional regulation rather than deliberate purchasing behaviour. Retargeting systems are not calibrated to identify vulnerable users. They are calibrated to reach all users at multiple moments across the day, which means they reach vulnerable users too.

Pre-selected options and the power of defaults

Pre-ticked boxes, where insurance, warranties, premium delivery, or newsletter subscriptions are selected by default, require users to actively opt out to avoid something they never chose. The EU banned pre-ticked boxes under the Consumer Rights Directive in 2014.

Since then, many platforms have moved to functionally equivalent approaches that achieve the same outcome without a literal tick box:

• A more expensive shipping option pre-selected as the recommendation
• A service bundled into a package that must be actively removed before checkout
• A higher-tier pricing plan pre-loaded when a selection page opens

Defaults are powerful for a clear reason: most users do not change them, not because they are inattentive, but because the default reads implicitly as a signal about what is normal or appropriate.

What research finds helps

The Cambridge Behavioural Public Policy study testing interventions against e-commerce dark patterns found that postponement was the most consistently effective approach across different tactic types. Returning to a purchase decision after 24 hours removes manufactured urgency almost completely. If the deal was genuinely time-limited, it will have expired. If it was not, the item is still there, and the choice can be made without artificial pressure.

Other findings from the research:

• Removing saved payment details introduces enough friction to interrupt impulse purchases for many users
• Translating virtual currencies and gift cards into real-money values before spending changes how those amounts are psychologically weighted
• Reading cancellation terms before signing up is more effective than reading them after the commitment is made

Sources: Flayelle et al., Nature Reviews Psychology (2023); OECD Dark Commercial Patterns (2022); Cambridge Behavioural Public Policy (2022); FTC complaint against Amazon (2023); 2023 study on online shopping addiction, Finland, Sweden, and UK; ADDICT Study, IHS Vienna (2026); Princeton dark patterns research