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Technique · Actionable Gamification

Exchangeable Points (GT#75)

A currency users earn and then spend or trade for things they value, unlike progress points that cannot be spent. Chou warns that running an economy is hard: the currency must stay scarce, earn rates need constant rebalancing, and assuming an economy alone creates engagement is a mistake.

Evidence grade D. Practitioner framework or anecdote: plausible, untested.ReturnStayPay

Plain label: spendable creditsAlso known as: Exchangeable Points, virtual currency, credits

How it works

Spendable points create ownership and planning (CD4), and scarcity control (CD6) keeps them valued. Chou separates currencies redeemable only inside the product, tradable between users, and tradable outside it. The balance of effort, time, tradability and reward needs ongoing tuning, much as a central bank adjusts rates; inflation destroys the currency's legitimacy and, with it, the motivation.

How to build it

Web
Community credits earned by answering questions and redeemable for templates or office-hour slots.
E-commerce
Loyalty points with a clear earn rate and rewards worth having, kept separate from status.
Mobile
Separate wallets for progress and coins, so spending never feels like losing progress.

What can go wrong

  • Inflation: points become plentiful and worthless.
  • Rewards not worth the effort, which insults users.
  • Real-money trading that brings fraud or gambling problems.

Pairs well with

  • Keep status (GT#1) and currency apart.
  • Track sources and sinks on an economy dashboard before adding earn paths.

In practice

Where it shows up

  • Starbucks · 2025

    Round

    Starbucks Rewards: stars, tiers and devaluation risk

    34.2M US 90-day active members, and member spend at 58% of US company-operated tender (data as of Sept 28, 2025; 60% a year earlier). The three-tier relaunch on March 10, 2026 drew mostly negative reaction from casual members (press).

    M4-M5 ×StayPay
    Case grade for the number: B. Evidence grade for the mechanism link: D.Analyst inferenceCorrelational

  • TikTok · 2024

    Round

    TikTok Lite: paid to watch, then withdrawn

    Aug 2024: the European Commission made binding TikTok's commitment to permanently withdraw TikTok Lite Rewards from the EU and not to launch any programme that circumvents the withdrawal, the first DSA case closed with commitments. No admission.

    M4 ×Return
    Case grade for the number: A. Evidence grade for the mechanism link: D.Analyst inference

Limits

What we don’t claim

  • Octalysis is a practitioner framework built from observing games, not a validated scientific model.Actionable Gamification Ch.15, pp.399-400
  • Left Brain and Right Brain are a metaphor for extrinsic and intrinsic motivation, not a claim about neuroscience.Actionable Gamification Ch.13, pp.342-343

Sources

  • Actionable Gamification · Yu-kai Chou

    Ch.8, p.186 · Ch.8, p.187 · Ch.17, p.474 · Ch.17, p.479 · Ch.8, p.160

Source IDs: GT#75CD4

Book content is paraphrased, never quoted at length. Last verified October 24, 2026.

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