Make an idle tycoon game

An idle game is one that keeps playing itself: you earn, reinvest in upgrades, hire help, and come back to find the numbers higher. Tycoon games add a place you build up, like a shop, a factory or a mine. Modder's AI idle game maker builds both, including the hardest part, an economy that stays fun after the first ten minutes.

Updated Oct 27, 2026Tested by the Modder team

Tycoon and idle games on Modder

Start small, reinvest everything, and watch it pile up. These are the shape your game will take.

Ore Empire TycoonModder Originals

Burger TycoonModder Originals

SpotlessModder Originals4

SkyreachModder Originals1

On this page

Building an idle game
What makes an idle game hold up
Idle, clicker or tycoon
Good at, and limits
Questions

By the numbers

A new game on Quick build: ~7 min
A new game on Long build: ~25 min
Games it builds, played in the browser: 2D and 3D
Where the games play, no download: Phone and desktop
Players in one online room, bots in empty seats: Up to 10
Per game, up to 2 MB each: 2,000 files

Build times are the builder's own estimates for a new game; the rest is from Modder's limits on Oct 28, 2026.

Building an idle game

Pick the thing that makes money
Every idle game has one: ore, burgers, lemonade, clean cars. Say what it is, how the player makes the first bit by hand, and what they spend it on. The theme matters more than you'd think, because it decides what the upgrades are called and what the world looks like.
It builds the loop and the economy
The builder sets up earning, a shop of upgrades with rising prices, helpers who earn on their own, and progress that saves. Then it plays the game and checks the numbers: how long until the first upgrade, whether anything becomes useless, when the player hits a wall.
Balance it by feel
Play for five minutes and say how it felt. "The second upgrade takes too long", "add a prestige reset", "show a pop-up with what I earned while away". Idle games get better with every small balance pass, and every pass is a saved version.

What makes an idle game hold up

Idle games look simple and are easy to get wrong. Prices that rise too fast make the game stall; too slow and there's nothing to aim for. Good ones give you a new thing to unlock every minute or two at first, then open a bigger layer (a new level of the mine, a second restaurant, a prestige reset) just as the first starts to feel slow.

The builder starts from those rules and lets you change them in plain words. Because the game saves in the browser, you can close the tab and come back to see your offline earnings, the moment every idle game is built around.

Idle, clicker or tycoon

Clicker games put the tap first and the automation second. Idle games are mostly automation. Tycoon games add a place you see grow: a 3D shop, factory or mine you walk around. Say which you want, or mix them: Ore Empire Tycoon is a walkable 3D tycoon with idle earnings on top.

What it does well, and what it doesn't

Good at

Economies with upgrades, rising prices, helpers and a prestige reset.
Progress that saves, with offline earnings when you come back.
3D tycoons you can walk around, as well as flat clicker screens.

Current limits

Very long progressions (weeks of play) need several balance passes after the first build.
No real-money purchases inside games: upgrades are bought with in-game money.
Saves live in the browser; a free account keeps them across visits on the same site.