Games & challenges
Quick browser games with no install and no signup.
306 projects, page 1 of 6
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Habit Toll — Guess the True Yearly Cost of Your Daily Habits
A 10-round guessing game that forces you to commit to a number before revealing the shocking cumulative total of everyday habits. Backed by transparent USDA nutritional math.
Games & challenges · Science & space -
Spot the Danger — DIY Science Safety Game
A timed mini-game that challenges you to spot the hidden safety hazard in viral DIY experiment procedures. Learn from real safety standards, beat your time, and discover your blind spots.
Games & challenges · Safety & emergencies -
Real Raise — Did your raise beat inflation?
Find out if your raise actually beat inflation in 15 seconds. Enter salary, raise %, and inflation to see if you are richer or poorer. Privacy-safe share card included.
Games & challenges · Money & crypto -
Dollar Sense — Guess the Real Value of Foreign Money
A rapid-fire guessing game where you see news-style headlines with foreign currency amounts and pick the closest USD equivalent from four order-of-magnitude options.
Games & challenges · Money & crypto -
Reality Check — Guess the real median financial stats
A 10-round estimation game where you guess real median financial statistics before seeing the answer. Your calibration score reveals where your mental model of normal is most distorted.
Games & challenges · Health & body -
Split Safe — Diversification Game | Is your money safe?
Play 10 rounds: split $10,000 across a bank, cash, digital wallet, and gold. Face random risk events and learn why diversification matters. Get your A-F grade.
Games & challenges · Safety & emergencies -
Full Stop — Guess Your Stopping Distance Game
A 10-round guessing game where you estimate total stopping distance at various speeds and road conditions, then see a visual track diagram splitting reaction distance from braking distance with your guess marked on the road.
Games & challenges · Travel & transport -
Job Posting Translator — Decode Red Flags in 60 Seconds
A daily 10-round game that trains you to instantly recognize what euphemistic job posting phrases actually mean. Each translation is backed by a public source.
Games & challenges · Work & productivity -
Speed Sense — Calibrate Your Crash Energy Intuition in 10 Rounds
A 10-round guessing game that trains your gut to feel how non-linearly speed translates into crash energy. See two speeds, guess the energy ratio, discover you were wrong.
Games & challenges · Science & space -
Guess the Gig — Train Your Data Gut in 2 Minutes
A 10-round timed guessing game. Estimate how much cellular data everyday digital activities burn. Every reveal cites real specs. Build your gut reflex.
Games & challenges · Science & space -
⏱️ Two Hours Later — Test Your Time Estimation Bias
A rapid-fire estimation game: guess how long 5 everyday tasks take, get scored against real sourced averages, and discover your personal underestimation ratio in 90 seconds.
Games & challenges · Safety & emergencies -
Inner Clock Test: Find Out If Your Internal Clock Runs Fast or Slow
A 90-second time-perception test. Guess elapsed time across 8 rounds and see your time bias on a scatter plot. Built for time blindness and ADHD curiosity.
Games & challenges · Everyday life -
Myth or Move — Bust Emergency Myths in 60 Seconds
A 60-second timed game: 10 emergency statements. Myth or Truth? Get instant corrections cited to FEMA, Red Cross, USGS, and CDC. Replay to beat your best.
Games & challenges · Safety & emergencies -
Made Where — Guess where your stuff is made | Daily Trade Game
A daily guessing game that builds your geographic intuition for global manufacturing. 10 real products, 8 country options, sourced answers, and your most surprising miss.
Games & challenges · Everyday life -
Price Shock — Guess the Real Price After Stacked Tariffs
A daily 5-round guessing game that trains your reflex for how tariffs, embargos, and supply disruptions compound multiplicatively. You commit to a price guess first, then watch the real math reveal line by line.
Games & challenges · Money & crypto -
Zone Race ✦ Time Zone Quiz & Daily Challenge
Zone Race is a 90-second daily challenge that tests how well you actually know world time offsets. See two cities, guess the exact hour difference, and get a personalized map of your blind spots.
Games & challenges · Everyday life -
Wait Rank — Test your wait-time intuition in 30 seconds
Wait Rank is a 30-second game: rank 5 everyday services by wait time, see your score, the correct order, and your biggest blind spot, backed by official data.
Games & challenges · Science & space -
⚡ Higher Buzz — Guess the Caffeine Game
A higher-or-lower game using real caffeine data from USDA FoodData Central. See a drink, guess if the next has more or less caffeine, build a streak, and calibrate your caffeine intuition in 3 minutes.
Games & challenges · Food & drink -
75% of What? — Daily Percentage Baseline Game
A daily 10-round guessing game where you estimate the real baseline behind percentage claims from news, ads, and crypto spam. Train your gut to ask "from what to what?"
Games & challenges · Money & crypto -
Tank Hours: Guess How Many Hours You Work Per Gas Tank
Train your brain to convert gas prices into hours of your life. Play 10 timed rounds guessing work-hours per tank, then calculate your personal real-world number.
Games & challenges · Work & productivity -
Label Decode — Guess What Food Labels Legally Mean
A 10-round game showing real food label claims like "natural" or "made with real fruit." Pick their legal status and see the exact FDA or EU regulation with a citation.
Games & challenges · Food & drink -
Heat Curve — Daily Heat Planning Puzzle Game
A daily puzzle game that builds the reflex of scheduling outdoor tasks around a temperature curve. Drag 5-6 tasks onto cool windows of a generated 24-hour heat curve and get scored on safety.
Games & challenges · Weather & climate -
Fat Chance — Feel the Real Odds of Gambling
A daily 10-round game where you guess the probability of winning real lottery, scratch card, sports bet, and casino scenarios, then see the true odds translated into visceral comparisons that land in your gut.
Games & challenges · Sports & fitness -
Wind Scale — 10 rounds to a wind reflex
A 10-round solo game that trains you to read wind-speed numbers like a meteorologist. See a speed, pick the real-world effect, earn a Beaufort-tied rank you can share.
Games & challenges · Weather & climate -
Sugar Spike — Guess Which Food Spikes Blood Sugar More
A bite-sized game: guess which of two foods has the higher glycemic index, see real published values with sources, and build a streak. Train your gut instinct with real GI data.
Games & challenges · Food & drink -
Brake Distance — E-Scooter Stopping Distance Game
Train your gut to stop in time. A daily 5-round game that calibrates your intuition for e-scooter stopping distances using real physics.
Games & challenges · Travel & transport -
Human or Robot? Guess 10 Feats Daily | Human or Robot
A daily 10-round guessing game where you decide whether a specific physical achievement was done by a human or a robot. Each feat is a dated, sourced fact. After 10 rounds you
Games & challenges · Everyday life -
Where Was It? — Daily Geography News Game
Read a real news event with all place names removed, click where you think it happened on a world map, and see your distance score. 80 curated events cycle over ~11 weeks.
Games & challenges · News & media -
Down Clock — Guess How Long Outages Last
Down Clock is a daily guessing game: read a real outage scenario, pick the median recovery time from four options, and see the sourced answer. Build calibrated intuition for how long power, internet, and water outages actually last.
Games & challenges · Everyday life -
Price Sense — Test Your Price Intuition | Daily Challenge
A 30-second daily challenge to guess real prices of 5 everyday items. See your error against Rosstat and RBC data and discover your money blind spots.
Games & challenges · Money & crypto -
Which Is Faster? — Daily Speed Comparison Game
A daily 10-round speed comparison game. Two items appear — pick which is faster, see real sourced speeds with visual bars. Build speed intuition in 60 seconds. Available in English, Russian, Spanish, and Chinese.
Games & challenges · Sports & fitness -
Price Chain — Guess Which Groceries a Commodity Spike Hits Hardest
A daily 12-round guessing game. See a commodity price scenario, pick which 3 of 6 groceries are most supply-chain exposed, and learn why corn drives eggs, wheat hits pasta before cookies, and sugar moves soda.
Games & challenges · Money & crypto -
Quake Power — Guess Earthquake Energy Ratios
A 60-second, 5-round game where you guess the energy ratio between two earthquake magnitudes. Computed live from the Gutenberg-Richter relation. Find out if your gut is logarithmically wrong.
Games & challenges · Safety & emergencies -
Deal Trap — Spot Pricing Traps in 15 Seconds
A fast-paced solo game where you tap the deceptive element in realistic product listings before the timer runs out. Built from 60 fictional listings based on documented FTC pricing-trap patterns.
Games & challenges · Everyday life -
Dead Wrong — Rank Everyday Risks by Real Danger
A 60-second risk-calibration game. Drag four everyday risks into order by actual danger, then see the true ranking, annual death rates, and your personal calibration score.
Games & challenges · Safety & emergencies -
Ready Score — Home Readiness for Power, Water & Winter Emergencies
Score your home readiness for power outages, water cuts, and worse in 2 minutes. Transparent 0-100 readiness score with sourced item weights.
Games & challenges · Everyday life -
What First? — Emergency Recall Game
Test if you actually remember what to do first in an emergency. Drag shuffled survival steps into the correct order before the timer runs out. Sourced from Red Cross, FEMA, and NFPA.
Games & challenges · Safety & emergencies -
Glance Blind — How Far Do You Travel Blind?
A 10-round visual guessing game that calibrates your intuition for blind-travel distance at driving speeds. See exactly how many car lengths you miss during a split-second glance.
Games & challenges · Travel & transport -
Summit Fit – Are You Ready for That Peak?
Match your hiking experience against 40 major summits using sourced elevation, technical grade, acclimatization, and fitness data. Get four transparent readiness sub-scores.
Games & challenges · Sports & fitness -
Money Runway — How Long Will Your Savings Survive a Crisis?
Enter three numbers and see five crisis timelines side by side. Get a 0-100 fragility score and find out which crisis breaks you first in under 30 seconds.
Games & challenges · Money & crypto -
Price Tag Then — Guess What Things Cost Back Then
A daily 5-round guessing game where you estimate historical prices of everyday items across five decades, then see your percent error against sourced real prices.
Games & challenges · Money & crypto -
Debt Dash — Practice debt payoff like a daily puzzle
Debt Dash is a daily solo game where you allocate extra payments across four real-world debts and discover your efficiency score against the mathematically optimal avalanche strategy.
Games & challenges · Everyday life -
Bet Tally — Guess Your Win Rate, Face the Real Number
A 30-second honesty check for casual bettors. Enter your recent bets, estimate your win rate, then confront the gap between your memory and the math.
Games & challenges · Science & space -
Seven Clues · Daily Deduction Puzzle
A daily deduction puzzle: read a short mystery, choose up to 7 questions from 15, each reveals a clue, then solve the case. Score depends on how few questions you needed — from Rookie to Legendary.
Games & challenges · Everyday life -
Stop Guess — Train Your Braking Intuition
A daily 10-round driving intuition game. See a speed and road condition, guess the stopping distance, and see how many car lengths off you were. Powered by real physics.
Games & challenges · Travel & transport -
Borderline — Do They Border? A Daily Geography Game
A daily 10-question geography game. See two countries, tap border or no border, and instantly view a map showing the spatial truth. Quick, daily, and deterministic.
Games & challenges · Travel & transport -
Stress Guess — Guess the Stress Score of Life Events
A 10-round guessing game where you estimate the stress score of everyday life events. Backed by the 1967 Holmes-Rahe scale, it reveals how cumulative change—positive or negative—drives burnout.
Games & challenges · Health & body -
Pinpoint — Daily Geography Game
Place 5 places from the news on a blank map — find out how far off you were in kilometers. A free daily geography game.
Games & challenges · News & media -
Charge Safe — Phone Charging Risk Score in 6 Taps
Answer 6 quick questions about your charging setup. Get a personalized 0–100 risk score with transparent sources from NFPA, CPSC, and UL, plus one specific change to make tonight.
Games & challenges · Safety & emergencies -
Spoil First — 60-Second Food Spoilage Game
Train your spoilage reflex in 60 seconds. Tap the food that spoils first at room temperature. USDA/FDA sourced data.
Games & challenges · Food & drink -
Color Match — 60-Second Visual Memory Challenge
A color flashes for 3 seconds, you recreate it with RGB sliders, then see your color side-by-side with the original and an honest accuracy score. Pure replayable fun.
Games & challenges · Sports & fitness -
Light Sync — Beat Jet Lag with Your Exact Flight Light Schedule
A free, personalized circadian rhythm tool that calculates a day-by-day light exposure timeline for your specific long-haul flight. Stop guessing when to seek sunlight or wear sunglasses—get the exact chronobiology math for your trip, for free.
Games & challenges · Travel & transport -
Risk Rank — Test Your Gut Against Real Statistics
A quick drag-and-drop game that challenges you to rank four risks by how likely they are to happen. Reveal the actual odds from published safety data and see how your instincts compare to reality.
Games & challenges · Safety & emergencies -
Habit Bill — Guess What Your Daily Habits Cost Per Year
A 60-second daily game. Guess the annual cost of 5 daily habits in 15 seconds each. No calculator. The gap between your guess and reality is the lesson that sticks.
Games & challenges · Everyday life -
Step Order — Daily Emergency Procedure Sequencing Game
Test if you know the right order of emergency steps in 30 seconds. Arrange shuffled steps of real-life procedures and learn from official sources.
Games & challenges · Safety & emergencies -
Wander Score: Dementia Wandering Risk Self-Assessment
Answer 7 questions about your loved one
Games & challenges · Safety & emergencies -
Rank It — Daily 60-Second Ranking Puzzle
A daily 60-second puzzle where you drag to rank 6 real-world items by a specific criterion—like animal speed or country area. Submit to see your per-slot accuracy, the correct ranking, and the exact values with sources. Play the daily challenge or practice unlimited puzzles.
Games & challenges · Everyday life -
Deal Duel — Train your brain to spot the better grocery deal in 3 seconds
A free daily game where you compare two grocery products by unit price against a 15-second timer. 10 rounds per day build a permanent reflex that transfers to real shopping trips.
Games & challenges · Food & drink -
Time Crunch — Guess Daily Minutes & Test Your Time Bias
A 60-second game guessing how many minutes per day the average American spends on chores, work, exercise, travel, and grooming. See real ATUS data and your planning bias.
Games & challenges · Travel & transport -
Which Uses More? — Water Usage Guessing Game
A fast 10-round guessing game: two activities appear, you pick which uses more water, and real liter figures with cited sources reveal why your instinct is wrong. Play the daily shared challenge or endless practice.
Games & challenges · Everyday life