Island Evolution
Guide

ABCya Let Me Grow: What It Is, What to Play Next

· · 6 min read

In short

  • Let Me Grow is a puzzle game on ABCya: get water to every thirsty flower by removing blocks and opening levees.
  • The twist is the garden gnomes. They have to stay on dry ground, so the flood you need is also the flood you have to contain.
  • It is a spatial puzzle. You are shaping where water goes on a board that changes every level.
  • When the levels run out, the step up is an order puzzle, where the board never changes and the sequence carries the whole problem.
▶ Play Island Evolution free
Illustration of the Island Evolution island after rain, with a waterfall feeding a stream that runs down past planted ground

Search for Let Me Grow and most of what comes back is a level number and somebody else's answer. That is a shame, because the game is built on one good idea, and once you can name the idea the levels stop being a list of things to look up. Here is what the game is doing, and where the same thinking goes when you want more of it.

What is Let Me Grow on ABCya?

It is a puzzle game hosted on ABCya, the children's education games site. Water has to reach every thirsty flower on the board. You get there by removing blocks and opening levees, and the garden gnomes standing around have to stay dry.

ABCya lists it for kindergarten through grade 6 and up, and files it under reasoning, problem-solving and critical thinking rather than under any school subject. That classification is honest. There is no arithmetic in it and nothing to spell. What it drills is the habit of looking at a board and asking what happens after you touch it.

The presentation is friendly, all daisies with faces and tidy green hills, which hides how strict the rules underneath are. Water goes wherever the terrain lets it go, it goes there all at once, and it does not check whether a gnome was standing in the way.

How do you solve a Let Me Grow level?

Work backwards from the flowers. Each one needs water on at least one side, so find the path water must take to reach the furthest flower, then check what that same path floods on the way. Removing a block is never a local decision.

The mistake most people make early is treating each block as its own little question: does this one come out, yes or no. But water released at the top of the board arrives everywhere downhill of it at the same moment. One removal can be right for three flowers and fatal for one gnome, and you will not see that until it has already happened.

So the useful move is to stop asking what to remove and start asking what the finished board looks like. Sketch where water has to end up. The removals are then just the way you get that shape, and the order you click in matters less than knowing what you are building toward.

Same habit, bigger board Island Evolution gives you eight items and a published requirement chart. Read what depends on what, then commit to an order. 40,320 possible, exactly 3 perfect.

▶ Open the game

Why do the gnomes make the puzzle harder?

They turn one goal into two that fight each other. Without gnomes, flooding everything would always win. The gnomes mean the flood has to be shaped: enough water to reach every flower, contained enough to leave dry ground.

This is the design idea worth taking away. With one goal you have a task, and you either found the path or you did not. With two goals pulling against each other you get a range of wrong answers that are wrong in different ways, and choosing between them is the actual work.

It is also why the gnomes appear a few levels in rather than on level one. You are taught the generous version of the rule first, where water is good and more water is better, and then the game takes it away. Our own game does the same thing with hazards, which is covered in the how to play section.

Do you need a membership to play Let Me Grow?

As of September 2026, pressing play on the ABCya page brings up a membership prompt offering unlimited access to their catalogue. ABCya is a subscription site now, a division of IXL Learning, so most of that library sits behind a login.

Running a games library for schools costs money, and a subscription is a reasonable way to pay for it. It does change the answer to "my kid liked this, what else can they play", because a lot of the honest answers now sit behind the same door.

For what it is worth: Island Evolution runs in a browser tab, needs no account and no download, and has no second half to unlock. We built it that way on purpose and have no plans to change it.

What should you play after Let Me Grow?

Something that keeps two goals pulling against each other but drops the level list. Order puzzles do that: one board, a fixed set of pieces, and all of the difficulty sitting in what sequence you use them in.

The step is smaller than it sounds. In Let Me Grow you already think about consequences that spread out from a single action. An order puzzle takes that and spreads it through time instead of across terrain. You place one thing, the whole board reacts, and then you place the next thing into a world your last move changed.

Our game gives you eight items on one island. Place them one at a time, and each item grows or fails depending on what is already standing when its turn comes. Eight items give 8 factorial orders, which is 40,320 of them, and exactly three score a perfect 27. There is more about the family this comes from in the FAQ, and the general method is in how to play.

How is an order puzzle different from a water puzzle?

A water puzzle asks where. An order puzzle asks when. In Let Me Grow the board changes and the goal stays still. In an order puzzle the board is identical every run and the only thing you control is the sequence.

The practical consequence is that you cannot look at an order puzzle and see the answer, the way you can sometimes stare at a water level until the path pops out. There is nothing spatial to see. What you can do instead is read dependencies: this thing needs that thing standing before it will grow, this other thing ruins anything planted after it.

So the skill you build is different, and it transfers better. Reading a set of dependencies and picking an order is what scheduling is, and what cooking a large meal is. That is also why we publish the chart and withhold the answer. The chart is the part you can teach.

Eight items, 40,320 orders No account, no download, no levels to unlock. Place eight items on one island and watch what your sequence built. Three orders score a perfect 27, and we do not publish which three.

▶ Start a run

Is Island Evolution suitable for the same age group?

Broadly, yes. It reads well from about eight upward and there is no reading load beyond item names. It is less forgiving than Let Me Grow, because a run takes all eight placements before you learn how you did.

That delay is the part young players find hard. A Let Me Grow level tells you straight away when the water goes wrong. Our game lets you finish and then shows you a score out of 27, so a young player has to sit with an imperfect result rather than undo it. Some children find that the best part and some find it maddening.

What makes it workable is that a run is short, and the chart means an improvement is always derivable rather than random. A second attempt with one thing moved is a real experiment, and the score tells you whether the theory was right.

Where do these facts come from?

  • The Let Me Grow page on ABCya, checked in September 2026, for the game description, the recommended grades and the skills ABCya lists it under.
  • The same page's play button, for the membership prompt described above.

Island Evolution is an independent game with no affiliation to ABCya or IXL Learning. Let Me Grow is their work, and nothing here is endorsed by them.

Frequently asked questions

What is the objective of Let Me Grow?

Get water to every thirsty flower by removing blocks and opening levees, while making sure the garden gnomes stay on dry ground. A flower counts as watered when water sits next to it.

Is Let Me Grow an educational game?

ABCya lists it under reasoning and problem-solving rather than a school subject, and recommends it from kindergarten through grade 6 and up. There is no arithmetic or reading content in it. The learning is in predicting consequences.

Where can I find Let Me Grow level solutions?

Not here. We do not publish solutions for other people's puzzles or for our own, because in this family of games the answer is the whole puzzle. What we publish is the way of thinking that produces answers.

What games are like Let Me Grow?

Anything built on two goals that pull against each other. Order puzzles are the closest relative with more depth: one board, a fixed set of items, and the sequence carrying all the difficulty.

Is Island Evolution free to play?

Yes. It runs in a browser tab with no account, no download and nothing locked behind a membership. Eight items, 40,320 possible orders, three of them perfect.