Welcome to Acadru

Pick Your Path.
Start Anywhere.

Challenges, quests, missions—your
learning journey, your choice.

Take the Discovery Quiz

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Pop Challenges

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10 mins

50 XP

What Keeps Skyscrapers Up

Gravity pulls. Wind pushes. Engineers fight back.

10 mins

50 XP

What Keeps Skyscrapers Up

Gravity pulls. Wind pushes. Engineers fight back.

15 mins

75 XP

Eradicate Killer Cats?

The Feral Cat Dilemma in Hawaii

15 mins

75 XP

Eradicate Killer Cats?

The Feral Cat Dilemma in Hawaii

15 mins

75 XP

AI 2027 – Saved by AI, Replaced by AI

A step-by-step forecast of how AI takes over!

15 mins

75 XP

AI 2027 – Saved by AI, Replaced by AI

A step-by-step forecast of how AI takes over!

10 mins

50 XP

More Than Data. It’s a Story.

When numbers meet visuals, they demand attention.

10 mins

50 XP

More Than Data. It’s a Story.

When numbers meet visuals, they demand attention.

15 mins

75 XP

Worldbuilding Pokémon

What if your favorite game creatures had to obey biology?

15 mins

75 XP

Worldbuilding Pokémon

What if your favorite game creatures had to obey biology?

10 mins

50 XP

Love Is Brainwork, Not Heartwork

The heart gets the credit, but the brain does the work.

10 mins

50 XP

Love Is Brainwork, Not Heartwork

The heart gets the credit, but the brain does the work.

15 mins

50 XP

The Bikini Was Born in a Nuclear Test

When superpowers race, small nations pay the price.

15 mins

50 XP

The Bikini Was Born in a Nuclear Test

When superpowers race, small nations pay the price.

15 mins

75 XP

From Duct Tape to Drone Brigades

How $500 flying cameras became Ukraine’s front-line tank killers

15 mins

75 XP

From Duct Tape to Drone Brigades

How $500 flying cameras became Ukraine’s front-line tank killers

15 mins

75 XP

The Great Sand Heist

A global resource war…hiding in plain sight.

15 mins

75 XP

The Great Sand Heist

A global resource war…hiding in plain sight.

15 mins

75 XP

Why Dubai Doesn’t Use Its Own Sand?

The sand looks right. The science says no.

15 mins

75 XP

Why Dubai Doesn’t Use Its Own Sand?

The sand looks right. The science says no.

10 mins

50 XP

Poop Made This Beach

You’re basically sunbathing on fish poop.

10 mins

50 XP

Poop Made This Beach

You’re basically sunbathing on fish poop.

Want to Write Like Pixar? Steal These 5 Rules.

10 mins

50 XP

Want to Write Like Pixar? Steal These 5 Rules.

Pixar doesn’t just animate—they emotionally engineer.

10 mins

50 XP

Want to Write Like Pixar? Steal These 5 Rules.

Pixar doesn’t just animate—they emotionally engineer.

10 mins

50 XP

Time Travel Through Telescopes?

Looking at stars means looking into the past. Literally.

10 mins

50 XP

Time Travel Through Telescopes?

Looking at stars means looking into the past. Literally.

AI Doesn’t Think. So Why Is It So Smart?

15 mins

75 XP

AI Doesn’t Think. So Why Is It So Smart?

AI doesn’t think—it calculates with scary precision.

15 mins

75 XP

AI Doesn’t Think. So Why Is It So Smart?

AI doesn’t think—it calculates with scary precision.

15 mins

100 XP

Tattoos: The Immune System's Challenge

Macrophages lock tattoos in for life.

15 mins

100 XP

Tattoos: The Immune System's Challenge

Macrophages lock tattoos in for life.

10 mins

50 XP

The Mackerel Economy

No Money? No Problem. A Fish Became Prison Currency

10 mins

50 XP

The Mackerel Economy

No Money? No Problem. A Fish Became Prison Currency

15 mins

75 XP

The Price Just Went Up—Why?

Surge pricing isn’t chaos—it’s the market in motion.

15 mins

75 XP

The Price Just Went Up—Why?

Surge pricing isn’t chaos—it’s the market in motion.

15 mins

75 XP

How Every Economy Begins

Every market begins with one act: a transaction.

15 mins

75 XP

How Every Economy Begins

Every market begins with one act: a transaction.

10 mins

50 XP

The Pencil Test

How One Tiny Tool Reveals the Whole Economy

10 mins

50 XP

The Pencil Test

How One Tiny Tool Reveals the Whole Economy

10 mins

50 XP

The City That’s Slowly Disappearing

A mega-city is sinking—but not for the reason you think.

10 mins

50 XP

The City That’s Slowly Disappearing

A mega-city is sinking—but not for the reason you think.

Mini Quests

View all

Rescue the Elements

Hack the Table: One Table. Infinite Possibilities

View Quest

30 mins

500 XP

Invent Your Own Currency

Could your idea be the next Bitcoin?

View Quest

60 mins

750 XP

Fix Concrete’s Dirty Secret

Concrete is cracking the climate—can nature fix it?

View Quest

60 mins

700 XP

Stop the Next Collapse

When buildings fall, lives and dreams shatter.

View Quest

30 mins

500 XP

Fix the Resource Curse

Rich in Resources. Poor in Policy?

View Quest

30 mins

500 XP

Eco-Fakes Uncovered

Learn to spot deceptive marketing and demand real sustainability!

View Quest

30 mins

500 XP

Invent the Next Economic Index

Decode the economy’s weirdest signals

View Quest

30 mins

500 XP

Resist the Crowd Trap

When everyone stays silent, evil wins.

View Quest

30 mins

500 XP

Turbulence, Illustrated

What equations can’t solve… your art might reveal.

View Quest

30 mins

500 XP

Can You Prove Genocide?

Genocide is a legal word, not just a tragedy.

View Quest

30 mins

500 XP

Fix Turbulence with Nature

Can animal secrets help us beat chaotic wind?

View Quest

30 mins

500 XP

Fighting the Rising Seas

Spot the risks, and help rebuild our coastal cities!

View Quest

30 mins

500 XP

Hunt the Hidden Primes

Think primes are predictable? Hunt. Be Surprised.

View Quest

30 mins

500 XP

Outsmart the Time Thieves

Rescue your mind from infinite distraction.

View Quest

30 mins

500 XP

Space Weather Watchers

Can You Decode the Sun’s Secrets Before They Disrupt Earth?

View Quest

30 mins

500 XP

Pop Challenges

View all

10 mins

50 XP

What Keeps Skyscrapers Up

Gravity pulls. Wind pushes. Engineers fight back.

10 mins

50 XP

What Keeps Skyscrapers Up

Gravity pulls. Wind pushes. Engineers fight back.

15 mins

75 XP

Eradicate Killer Cats?

The Feral Cat Dilemma in Hawaii

15 mins

75 XP

Eradicate Killer Cats?

The Feral Cat Dilemma in Hawaii

15 mins

75 XP

AI 2027 – Saved by AI, Replaced by AI

A step-by-step forecast of how AI takes over!

15 mins

75 XP

AI 2027 – Saved by AI, Replaced by AI

A step-by-step forecast of how AI takes over!

10 mins

50 XP

More Than Data. It’s a Story.

When numbers meet visuals, they demand attention.

10 mins

50 XP

More Than Data. It’s a Story.

When numbers meet visuals, they demand attention.

15 mins

75 XP

Worldbuilding Pokémon

What if your favorite game creatures had to obey biology?

15 mins

75 XP

Worldbuilding Pokémon

What if your favorite game creatures had to obey biology?

10 mins

50 XP

Love Is Brainwork, Not Heartwork

The heart gets the credit, but the brain does the work.

10 mins

50 XP

Love Is Brainwork, Not Heartwork

The heart gets the credit, but the brain does the work.

15 mins

50 XP

The Bikini Was Born in a Nuclear Test

When superpowers race, small nations pay the price.

15 mins

50 XP

The Bikini Was Born in a Nuclear Test

When superpowers race, small nations pay the price.

15 mins

75 XP

From Duct Tape to Drone Brigades

How $500 flying cameras became Ukraine’s front-line tank killers

15 mins

75 XP

From Duct Tape to Drone Brigades

How $500 flying cameras became Ukraine’s front-line tank killers

15 mins

75 XP

The Great Sand Heist

A global resource war…hiding in plain sight.

15 mins

75 XP

The Great Sand Heist

A global resource war…hiding in plain sight.

15 mins

75 XP

Why Dubai Doesn’t Use Its Own Sand?

The sand looks right. The science says no.

15 mins

75 XP

Why Dubai Doesn’t Use Its Own Sand?

The sand looks right. The science says no.

10 mins

50 XP

Poop Made This Beach

You’re basically sunbathing on fish poop.

10 mins

50 XP

Poop Made This Beach

You’re basically sunbathing on fish poop.

10 mins

50 XP

Want to Write Like Pixar? Steal These 5 Rules.

Pixar doesn’t just animate—they emotionally engineer.

10 mins

50 XP

Want to Write Like Pixar? Steal These 5 Rules.

Pixar doesn’t just animate—they emotionally engineer.

10 mins

50 XP

Time Travel Through Telescopes?

Looking at stars means looking into the past. Literally.

10 mins

50 XP

Time Travel Through Telescopes?

Looking at stars means looking into the past. Literally.

15 mins

75 XP

AI Doesn’t Think. So Why Is It So Smart?

AI doesn’t think—it calculates with scary precision.

15 mins

75 XP

AI Doesn’t Think. So Why Is It So Smart?

AI doesn’t think—it calculates with scary precision.

15 mins

100 XP

Tattoos: The Immune System's Challenge

Macrophages lock tattoos in for life.

15 mins

100 XP

Tattoos: The Immune System's Challenge

Macrophages lock tattoos in for life.

10 mins

50 XP

The Mackerel Economy

No Money? No Problem. A Fish Became Prison Currency

10 mins

50 XP

The Mackerel Economy

No Money? No Problem. A Fish Became Prison Currency

15 mins

75 XP

The Price Just Went Up—Why?

Surge pricing isn’t chaos—it’s the market in motion.

15 mins

75 XP

The Price Just Went Up—Why?

Surge pricing isn’t chaos—it’s the market in motion.

15 mins

75 XP

How Every Economy Begins

Every market begins with one act: a transaction.

15 mins

75 XP

How Every Economy Begins

Every market begins with one act: a transaction.

10 mins

50 XP

The Pencil Test

How One Tiny Tool Reveals the Whole Economy

10 mins

50 XP

The Pencil Test

How One Tiny Tool Reveals the Whole Economy

10 mins

50 XP

The City That’s Slowly Disappearing

A mega-city is sinking—but not for the reason you think.

10 mins

50 XP

The City That’s Slowly Disappearing

A mega-city is sinking—but not for the reason you think.

Mini Quests

View all

Rescue the Elements

Hack the Table: One Table. Infinite Possibilities

View Quest

30 mins

500 XP

Invent Your Own Currency

Could your idea be the next Bitcoin?

View Quest

60 mins

750 XP

Fix Concrete’s Dirty Secret

Concrete is cracking the climate—can nature fix it?

View Quest

60 mins

700 XP

Stop the Next Collapse

When buildings fall, lives and dreams shatter.

View Quest

30 mins

500 XP

Fix the Resource Curse

Rich in Resources. Poor in Policy?

View Quest

30 mins

500 XP

Eco-Fakes Uncovered

Learn to spot deceptive marketing and demand real sustainability!

View Quest

30 mins

500 XP

Invent the Next Economic Index

Decode the economy’s weirdest signals

View Quest

30 mins

500 XP

Resist the Crowd Trap

When everyone stays silent, evil wins.

View Quest

30 mins

500 XP

Turbulence, Illustrated

What equations can’t solve… your art might reveal.

View Quest

30 mins

500 XP

Can You Prove Genocide?

Genocide is a legal word, not just a tragedy.

View Quest

30 mins

500 XP

Fix Turbulence with Nature

Can animal secrets help us beat chaotic wind?

View Quest

30 mins

500 XP

Fighting the Rising Seas

Spot the risks, and help rebuild our coastal cities!

View Quest

30 mins

500 XP

Hunt the Hidden Primes

Think primes are predictable? Hunt. Be Surprised.

View Quest

30 mins

500 XP

Outsmart the Time Thieves

Rescue your mind from infinite distraction.

View Quest

30 mins

500 XP

Space Weather Watchers

Can You Decode the Sun’s Secrets Before They Disrupt Earth?

View Quest

30 mins

500 XP

Pick Your Path. Start Anywhere.

Rescue the Elements

Invent Your Own Currency

Fix Concrete’s Dirty Secret

Stop the Next Collapse

Fix the Resource Curse

Eco-Fakes Uncovered

Invent the Next Economic Index

Resist the Crowd Trap

Turbulence, Illustrated

Can You Prove Genocide?

Fix Turbulence with Nature

Fighting the Rising Seas

Hunt the Hidden Primes

Outsmart the Time Thieves

Space Weather Watchers

Rescue the Elements

Invent Your Own Currency

Fix Concrete’s Dirty Secret

Stop the Next Collapse

Fix the Resource Curse

Eco-Fakes Uncovered

Invent the Next Economic Index

Resist the Crowd Trap

Turbulence, Illustrated

Can You Prove Genocide?

Fix Turbulence with Nature

Fighting the Rising Seas

Hunt the Hidden Primes

Outsmart the Time Thieves

Space Weather Watchers

Pick Your Path.
Start Anywhere.