fearn.fun

Free learning games for kids 4–16 about the sea, science and money. No ads, no accounts.

Eleven games I built about the working sea and the life in it, from a river town's fuel tankers to a coral reef.

From age 4

The Reef app is coming soon

Join the waitlist and I will send you one email when it is ready.

From age 8

From age 12

Keep a river town's lights on

Run the power for a small river town. Save the dam's water for the dry season, start the engines before the afternoon heat, and bring the fuel tankers up the river.

Ages 14+ · Teaches how power in must match power out

Bahía Tucán as a model on a table: a tanker alongside the fuel quay with the loading arms on her, two fuel tanks behind, the town on the hill and the cargo wharf with its crane. Play Bahía Tucán Tablet or computer

For parents

I’m David Fearn, and I build every game on this site. Each one teaches one real thing through play.

  • Harbor Count teaches counting, adding and taking away. Ages 5+
  • Float or Sink teaches why things float or sink. Ages 5+
  • Lighthouse teaches how light bounces, and planning ahead. Ages 4+
  • The Reef teaches reef ecology, with sourced facts. Ages 5 to 8 as Little Rangers, 9 to 16 as Ranger
  • Open Water teaches sea animals, with sourced facts. Ages 4+ as Little Sailors, 8+ as Explorers
  • Lights On teaches buying ahead and keeping a reserve. Ages 8+
  • Delta teaches how diesel becomes light. Ages 8+
  • Morning Catch teaches supply and price, and fish facts. Ages 10+
  • Safe Water teaches logic and budgeting, with sourced “Why?” facts. Ages 11+
  • Trade Winds teaches the wind belts and the Gulf Stream. Ages 12+
  • Bahía Tucán teaches how power in must match power out. Ages 14+

There are no ads, no accounts and nothing to install. Progress stays in your own browser, the games have no email boxes for children, and the only things I keep are what you choose to send me, such as your email address. The privacy page says exactly what happens.

Why these games

For fifteen years I traded fuel oil and marine gasoil across the Caribbean and the Americas. Bahía Tucán grew out of my first port, where the cargoes went to a power plant. I would like these games to share a little of that world: the ships, the ports and the fuel that keeps a town's lights on, and the two things that interest me most, the sea and nature.

I build these games with my daughters in mind, and I hope other families will enjoy them as much as they do.

You will find a short verse from the King James Bible at the end of each game. I put them there because I believe the sea and all the life in it were made by God, and the verses say it better than I can. If you would like to know more, you can read the good news, written out simply, on my other site, kjvlamp.org.

David

How it really works

Press through a real machine one step at a time. Every number on it has a source you can check.

6 steps How does a gallon of diesel become light?Goes with Delta 6 steps How does a lake become light?Goes with Bahía Tucán 6 steps How does one tank of air last a dive?Goes with The Reef 6 steps Why does Queensland ban catching coral trout around two new moons a year?Goes with The Reef 6 steps Which fish have to go back in the water, and why?Goes with Morning Catch 7 steps How does a heat pump heat a house in winter?Goes with Lights On 5 steps Why is a minehunter made of wood?Goes with Safe Water 7 steps Why does the quickest course to the Caribbean change with the time of year?Goes with Trade Winds 6 steps How does one oil lamp reach ships far out at sea?Goes with Lighthouse

“They that go down to the sea in ships, that do business in great waters; These see the works of the Lord, and his wonders in the deep.” Psalm 107:23-24Read the good news