Build an Idle Tycoon Playable in Under an Hour
Working round in about an hour on the placeholder art, longer once a designer is involved. The interesting part is not the clicking: it is tuning an economy for an audience that will leave, in a mechanic deliberately built so nobody can lose.
In short
- Two gestures, on different targets: tap a plot to build or upgrade it, drag the collector through the money the buildings throw off.
- There is no way to lose, by design. The round ends when the goal is met and otherwise runs until the ad does — a fail state would sell the opposite of what the genre promises.
- The whole build is an economy tuning problem. The editor estimates when each plot gets built, and the second building has to arrive inside about fifteen seconds.
- The goal is 'the resort is finished' rather than a money target, because a viewer can check a finished resort against the screen and cannot tell whether $2,000 is close.
- Do not tune the note value to change pacing. Tune income and costs — a low note value floods the screen with sprites and takes the frame rate with it.
This is a complete build of an idle-builder ad, the genre where you tap a thing, it starts earning, and you spend what it earned on the next thing. Give it about an hour working on the placeholder art the template ships with. Adding your own buildings takes longer, because there are twelve of them — three plots at three stages each, plus an empty lot.
It is worth saying up front how this differs from the match board, because the two are the templates people most often compare. A match round is a puzzle with a win and a loss. An idle round is a curve. Nobody fails it; they simply get further or less far before the ad ends. That single difference decides almost every number in the build, and it is the thing most idle ad creative gets wrong.
What the player actually does
Two gestures, and this is the only mechanic in the set that asks for two different ones on two different targets.
Tap a plot to build it, and tap it again to upgrade it. Each plot has three stages of art, so an upgrade visibly grows the building — which is the one thing an upgrade absolutely has to do. A player who pays and sees no change has learned that spending is pointless.
Drag the collector through the money. Buildings throw off notes over time; a character walks the strip below the field and sweeps up anything it passes near. The character lags behind your finger on purpose: a sprite locked to the pointer reads as a cursor, one that chases it reads as a character being led.
That is the entire interaction. The loop is: tap to build, drag to collect, spend the collection on the next build. It takes about four seconds to understand and nothing needs explaining, which is most of why the genre advertises so well.
Why the field looks empty when you add it
The canvas shows the field, the balance plate and the button — no buildings, no notes, no collector. All of those are parked off the artboard as ordinary objects and copied in when the round starts, which is what lets you select and restyle any of them like a normal object. This mechanic also has two gestures on different targets, and nothing on a still canvas tells you the character is draggable. Press Play before concluding anything is missing.
The build
Seven steps. The first three give you a working round; the rest are the economy, which is where the real work is.
- 1
Add the Idle Tycoon template
Start a playable project and choose Idle Tycoon from the template list — 'Build it, upgrade it, repeat'. It builds the field, the balance plate, the button and all twelve building states in one go.
A wide band across the middle of the canvas, a balance plate above it, a button below. The field itself looks empty.
- 2
Press Play and run a full round
Tap the first plot — it is free, deliberately, so the opening tap is obvious. It starts producing notes. Drag the character through them to collect. Keep going until the resort is finished.
The first plot builds on one tap, notes appear above it, dragging the character sweeps them up, and the balance climbs. The round ends when every plot is built and fully upgraded.
- 3
Open the Rules tab and read the pacing estimate
This is the step that matters most and the one with no equivalent in the other templates. The tab lists each plot with the time it is expected to be built, for a player collecting as fast as the money appears. It is a best case — in practice everything lands later.
Three rows, one per plot, each with a time in seconds. On the shipped numbers the second building arrives at about 8.3 seconds.
- 4
Replace the buildings with your art
On the Pieces tab each plot has an empty state and three tiers. The art is drawn to fixed proportions — 210 × 230, 210 × 300, 210 × 380 — so each stage is visibly taller than the last. Match those ratios and the growth reads correctly without any further work.
Your buildings on the field, each upgrade visibly larger than the stage before it.
- 5
Set the costs and incomes
Each plot has a build cost, an upgrade cost and a base income. Leave the first plot free. The others are what decide the pacing, and changing any of them updates the estimate in step three immediately — so tune against that readout rather than by replaying the round each time.
The pacing estimate still showing the second building inside fifteen seconds, with no amber warnings on the tab.
- 6
Choose what ends the round
Under Goal, Ends on offers 'Resort done', 'All built' or 'Money'. Leave it on 'Resort done' unless you have a specific reason — the next section explains why the other two are worse for an ad.
The round ending on the last upgrade rather than on the last building going up.
- 7
Point the button somewhere and export
Set the button's click action to your store URL, then export. You get one self-contained file. Check it against the size limit of whichever network you are shipping to before uploading.
A single file that opens in a browser and plays exactly as it did in the editor, in both orientations.
The economy is the whole build
Everything above except step five is mechanical. This is the part that decides whether the ad works.
An idle ad is a pacing problem with a hard deadline. The viewer did not ask for this and can leave at any moment, so the question is not whether your economy balances over ten minutes — it is what has happened by second eight, and by second fifteen.
The shipped economy, and what each number is doing:
| Setting | Default, and the reasoning |
|---|---|
| **Starting money: 60** | Exactly enough to build the first plot and nothing else, so the opening tap is obvious and the second build has to be earned. If you raise the first plot's cost above the starting money, the ad opens on a wall — nothing to tap and nothing earning — and the editor warns you about it. |
| **Plot costs: 0, 200, 400** | The first is free on purpose. The other two are the pacing dial, and they are what you should be changing when the round feels too slow or too quick. |
| **Incomes: 25, 38, 56** | Rising, so each building is worth more than the last and an upgrade is worth buying. The gap between them is what makes the second building feel like a step up rather than a duplicate. |
| **Note value: 25** | What one collectable note is worth. Leave this alone. Income accumulates invisibly and pops a note each time it crosses this value, so lowering it does not change the pace — it just fills the screen with sprites and takes the frame rate with them. The editor warns when buildings are throwing off notes faster than anyone can sweep. |
| **Notes per building: 3** | How much uncollected money one building holds. Past it, income waits rather than being lost — so ignoring a building costs the player nothing, and a building visibly full is a reason to walk over. |
| **Upgrades per plot: 2** | Two upgrades past the built stage, matching the three tiers of art. Going higher is allowed and the editor will warn you: past the third tier the art stops changing, so the player pays and sees no difference. |
| **Pickup radius: 46** | Generous on purpose. There is no wrong note to pick up, so nothing is gained by making collection precise — and a collector that appears to refuse notes reads as broken. |
The second building is what sells this genre — the moment two things are earning at once. If it arrives after fifteen seconds, most viewers have already gone.
That fifteen-second mark is the one number worth treating as a constraint rather than a preference. The first building is just a tap with a result. The genre's actual promise — things earning while you attend to something else — does not exist until the second one is up, and an ad that has not delivered its premise by then has spent its whole budget on a setup.
The shipped numbers reach it at about 8.3 seconds, which leaves room for a player who collects less efficiently than the estimate assumes. If your own costs push it past fifteen, lower the second plot's cost rather than raising the incomes — raising income makes every later beat arrive faster too, and you usually only wanted to move the one.
Why there is no way to lose
The mechanic has no fail state, and that is a deliberate design position rather than an omission.
An idle game's promise is accumulation without pressure. It is the genre people play while doing something else, and the appeal is that progress is never taken away. An ad for that which tells the viewer they failed is advertising the opposite of the product — it takes the one genre built on not being punished and punishes you inside twenty seconds.
So the round ends when the goal is met, and otherwise simply runs until the ad does. A player who dawdles does not lose; they see less. This also removes a whole category of tuning anxiety, because there is no difficulty to balance — only a pace to set.
It has a consequence worth being explicit about. Since the round cannot be failed, the only thing your numbers control is how far a viewer gets before they leave. That makes the pacing estimate the single most useful thing on the Rules tab, and it is why this walkthrough spends more time there than on anything else.
Why the goal is 'Resort done' and not a money target
A money target is the obvious choice and the wrong one. Nobody watching can tell whether $2,000 is close — the number is unreadable at a glance, so the goal provides no sense of progress. 'The resort is finished' is a sentence the viewer can check against the screen they are already looking at. Ending on all plots built is also worse than it sounds: we tried it, and the round ended the instant the third building went up, at 19.4 seconds, with four upgrade beats still unbought. The resort became interesting and the round immediately stopped.
Questions this raises.
How long should the whole round run?
Long enough to reach the finished resort and no longer. On the shipped numbers that lands in roughly the high twenties to low thirties of seconds for an efficient player, which is at the upper end of what this format can hold. If your tuning pushes past that, cut an upgrade tier rather than speeding everything up — losing one beat is better than making every beat feel weightless.
The screen fills with uncollected notes. What do I change?
Raise the note value or lower the income, and do not lower the note value hoping for more to collect. The editor flags this directly: when buildings throw off notes faster than a player can sweep them, the screen fills and stays full, which looks like clutter rather than wealth. The cap of three notes per building is the other guard — it means income waits rather than piling up indefinitely.
Can I use more than three plots?
You can, and you probably should not. Three plots at three stages is nine build-or-upgrade beats, which is already more than most viewers will see. A fourth plot does not add a beat so much as push the finished resort out of reach, and the goal stops being achievable inside the ad — at which point the round has no ending and the player never gets the one moment you were building toward.
Does the collector need to be a character?
It reads better as one. The lag is doing the work: because the sprite chases your finger rather than sitting on it, it registers as something you are leading rather than a cursor you are moving. If you replace it with an abstract shape, keep the follow speed as it is — the delay is what makes the drag feel like directing somebody rather than dragging an icon.
Editorial
The Play Ads Maker team
We build the editor behind this site, which means we spend our days inside the format — its constraints, its export limits, and the question of what actually makes someone tap. We write about what we learn doing it.
The fastest way to understand the format is to build one
The editor is free to open, runs in the browser, and needs no code. Start from a template and have something playable within the hour.
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