Three are open now: one each for skin, lung and breast.

Sol & the UV Shield Quest

A side-scrolling adventure that teaches children how to enjoy the sun without harming their skin.

Most skin cancers are caused by ultraviolet radiation, and the habits that prevent them are learned young. In this game Sol runs, jumps and collects sun stars across five regions, from a grassy meadow to a snowy mountain. Along the way Sol picks up a broad-brimmed hat and SPF 30+ sunscreen, loses the sunscreen after a swim, and reaches checkpoints where a quiz question must be answered before the path opens again.

The questions cover what the UV Index means, when protection matters (UV 3 and above), why shade, clothing and sunscreen work best together, how sand, water and snow reflect UV, and why tanning beds should be avoided. Wrong answers are never punished: Sol is nudged back with a hint and a laugh. The game runs in your browser, works on a phone, and collects no data. It is in English.

How to play

1. Press Play. On a keyboard, move with A D or ← → and jump with Space. On a phone, use the on-screen buttons. A game controller works too.
2. Collect sun coins and the nine hidden sun stars. Some platforms move and some fall, springs send Sol high, and the small animals on the path can be hopped over or bounced on.
3. Watch the UV Index and the sun meter in the top bar. The UV Index changes from region to region and drops when Sol stands in shade. The sun meter fills in strong sun and empties in shade; a hat and sunscreen slow it down, and sunscreen wears off, so look for a bottle to reapply it.
4. At each checkpoint, read the question and jump up beneath one of the three answer blocks. The right answer opens the gate; a wrong one gives a hint and another try.
5. Press R to restart. The cog opens the settings: voice narration, high contrast, a dyslexia-friendly font, larger text, game speed and touch-control size.

The five regions and their UV Index

• Sunny Grassland UV 5
• Shade Forest UV 3
• Sunscreen Beach UV 7
• Sports & Mountain UV 8
• Sun-Safety Castle UV 6

The game uses an original character and artwork. Its source is open at github.com/Wenxin-Wan/sun-safety-adventure. The sun-safety advice follows the European Code Against Cancer and WHO guidance on UV protection.

The Lung Detective

An investigation across a flat, a street and a building yard, in which every clue is filed the way IARC files evidence.

Smoking causes most lung cancers, and stopping helps at whatever age it happens. That is the first finding in the case file, and the rest of the investigation builds on it. The player searches three scenes, a flat, a street and a building yard, and turns up twelve clues. Each has to be filed the way IARC files evidence: a known cause of lung cancer (Group 1), a probable cause (Group 2A), or something with no evidence behind it. The real hazards can then be fixed, and a clean-air score rises with each one.

The clues cover second-hand smoke; radon in the home, with a small detector game built around the WHO reference level of 100 Bq/m³; outdoor air pollution and diesel exhaust; wood smoke and high-temperature frying; and the silica dust, asbestos and welding fumes of a building site. Bitumen roofing lands in the probable group, and coffee and stress turn out to have no evidence behind them at all. Three conversations carry the argument: a flatmate who smokes only a few a day, a vape-shop owner who calls vaping harmless, and a foreman who thinks quitting after twenty years is pointless. Every clue shows its source and the official wording of the European Code Against Cancer. The game runs in your browser, works on a phone, and collects no data. It is in English.

How to play

1. Press Play, then search each scene for its four clues. A ring appears when the pointer passes over one. On a phone, tap whatever looks suspicious: a miss tells you whether you are warm or cold. Tab and Enter work too, and a hint button shows one clue.
2. File each clue in one of three drawers: known cause (Group 1), probable cause (Group 2A), or no evidence. A wrong drawer is greyed out and you try again; the right one opens the source and the wording of the European Code Against Cancer.
3. Fix the hazards that can be fixed. Each one raises the clean-air score. In the flat, the radon detector is a small game of its own: the WHO reference level is 100 Bq/m³, and WHO says national reference levels should not exceed 300.
4. Talk to the three people you meet: the flatmate, the vape-shop owner and the foreman. Each has a reason to doubt, and you answer with the evidence.
5. After the third case comes the line-up: six clues to file again from memory. The report then gives your detective rank and the clean-air score. The cog opens the settings: high contrast, larger text, wider and easier-to-read letters, reduced motion, sound, and an option to show where the clues are.

Every clue in the game cites its source. The classifications follow the IARC Monographs, the prevention wording is that of the European Code Against Cancer, and the radon reference level is the WHO’s (100 Bq/m³). The finding that stopping smoking helps at any age comes from Peto and colleagues (BMJ, 2000).

A Town of 1,000

A choices game in which a town council follows 1,000 women from their twenties to their sixties and sees, dot by dot, what prevention changes.

Breast cancer is the most common cancer in women, and much of what is said about preventing it rests on very little. In this game the player is the council of a town whose 1,000 women are followed from their twenties to their sixties. Each of five chapters brings two decision cards and a small effort budget to spend on them: alcohol, physical activity, weight after the menopause, breastfeeding, menopausal hormone therapy, screening. The outcome appears on an array of 1,000 dots as the number of women diagnosed with breast cancer by age 75, about 94 of 1,000 in Western Europe (GLOBOCAN 2024 estimates), and the number who die of it, about 15.

The effect sizes are modest, taken from pooled studies, so a good decade of choices moves a handful of dots. Myth cards are there to be spotted: antiperspirants and underwired bras cost effort and change nothing, and a smoke-free card explains that for breast cancer the evidence on smoking is limited, whatever smoking does elsewhere in the body. The game ends with a panel headed “What this game can and cannot say”: these are population averages, and they predict nothing about any one woman. It runs in your browser, works on a phone, and collects no data. It is in English.

How to play

1. Press Play. You sit as the council of a town whose 1,000 women you will follow across five decades, one chapter for each decade of their lives.
2. Each chapter deals two decision cards and gives you a small effort budget. Read both cards, then spend the budget where you think it will count.
3. Before each count, forecast how far the decade’s choices will move the number diagnosed. Then watch the 1,000 dots: each choice moves the number of women diagnosed by age 75, and the number who die of it, by the amount the pooled studies support. Small movements are what the evidence supports.
4. Some cards are myths. Antiperspirants and underwired bras cost effort and move nothing; the smoke-free card explains why the breast-cancer evidence for smoking is only limited.
5. At the end, compare your town with a council that did nothing and with the most any council could do, then read the panel “What this game can and cannot say”. The numbers are averages for a population like Western Europe’s, and no dot stands for any one woman.

Baseline figures are for Western Europe (GLOBOCAN 2024 estimates). Effect sizes come from pooled studies of alcohol, physical activity, weight after the menopause, breastfeeding, menopausal hormone therapy and screening participation. The prevention advice follows the European Code Against Cancer.