Idle games work on a simple loop: you earn a resource, spend it on things that earn that resource automatically, and repeat. Prices rise by a fixed percentage with every purchase while upgrades multiply your income, so numbers grow very fast and then slow down. At that point a prestige reset trades your progress for a permanent bonus, and the loop starts again, faster. Offline earnings keep the loop turning while the game is closed.
Everything else in the genre is decoration on that structure. Here’s how each part fits.
What is an idle game? #
Wikipedia defines incremental games as games built on the incremental accumulation of resources and gradual, often exponential progression through repetitive actions or automation. Games that lean on active clicking are called clicker games, and ones that mostly run themselves are called idle games. Most modern titles mix the two: you click or tap early on and let automation take over later.
The genre’s usual history runs through Progress Quest (2002), often called the first idle game, then Cow Clicker (2010), a Facebook satire, and Cookie Clicker (2013), which made the genre mainstream. AdVenture Capitalist and Clicker Heroes followed in 2014 and helped standardize offline earnings and prestige.
What is the core loop of an idle game? #
Frog Pond’s loop is a typical example:
- Tap the hero frog to earn coins by hand.
- Hire worker frogs that produce coins every second.
- Buy upgrades that multiply a frog tier, your taps or the whole pond.
- Grow until purchases slow down.
- Migrate (Frog Pond’s prestige), trading the run for Tadpole Eggs that buy permanent progress.
Swap coins for cookies and frogs for grandmas and you have Cookie Clicker. Swap them for cash and lemonade stands and you have AdVenture Capitalist. The theme changes; the loop doesn’t.
Why do prices go up so fast in idle games? #
Almost every idle game raises the price of each producer by a fixed percentage every time you buy one. In Frog Pond, each frog costs 15% more than the last of its kind. The first Tadpole costs 15 coins, the 50th about 14,100 and the 100th about 15.3 million.
This exponential price curve does two things. It stops any one producer from being the answer forever, since cheaper tiers eventually cost more than the next tier up. And it guarantees that every run eventually slows down, which is what makes prestige worthwhile.
How does production keep up with rising prices? #
Multipliers. Idle games stack bonuses on top of each other, and because they multiply rather than add, they compound fast. In Frog Pond, a single frog’s output gets multiplied by:
- up to four ×2 upgrades for its tier (×16 in total)
- global upgrades worth +5% to +50% each
- your biome, from +10% up to ×2
- achievements, 56 of them worth 1% to 15% each
- streak badges, festival weekends and other permanent bonuses
Multiply all of that together and a frog that started at 0.1 coins per second can end up making many times its base rate. Stack eight tiers of frogs on top and you get the enormous numbers the genre is known for. A late-game Frog Pond screenshot on the game’s site shows a pond making 3.70 million coins a second.
Why do idle game numbers get so huge? #
Because exponential prices are chased by multiplicative bonuses, both sides of the economy grow by orders of magnitude. After a few hours, you’re dealing in trillions, and a few days later in numbers with no everyday names. That’s why idle games use abbreviations like k, M, B, T and then letter codes or scientific notation. We explain every notation in idle game number abbreviations.
The size of the numbers is part of the fun. Watching a counter go from hundreds to quadrillions gives you a sense of scale that few other games offer.
How do idle games earn while you’re away? #
They don’t run in the background. When you close the game, it saves the time. When you reopen it, it multiplies your production rate by the time you were gone, applies a cap, and pays you. Frog Pond caps this at 8 hours by default, and some frogs and talents extend it. Our guide to offline earnings goes deeper, including why caps exist and how to stretch them.
What is prestige, and why does every idle game have it? #
Prestige is a voluntary reset. You give up your current run (money, producers, upgrades) and receive a permanent currency or bonus. Since prices reset to their cheapest while your bonus stays, the next run goes faster than the last.
Prestige formulas usually grow slower than your earnings. Frog Pond pays Tadpole Eggs equal to the square root of your run’s coins divided by a million, so four times the coins pays twice the eggs. That keeps players resetting regularly instead of grinding one run forever. The details are in how prestige works in idle games.
How do idle games keep you playing? #
Beyond the core loop, most idle games add systems that pace content and give reasons to return:
| System | What it does | Frog Pond example |
|---|---|---|
| Content gates | New producers or areas appear at milestones | 30 Pond Levels that add frog tiers, biomes and visitors |
| Events | Short timed bonuses while you play | Fly swarms, dragonfly chests, algae, herons |
| Dailies | Rewards for returning each day | 7-day reward cycle, daily Pond Trial |
| Achievements | Goals with small permanent bonuses | 56 achievements |
| Story | A reason to reach the next milestone | 10 chapters narrated by Sage Toad |
Some games also have an ending. Universal Paperclips ends when the universe has been turned into paperclips, A Dark Room has more than one ending, and Frog Pond ends at Pond Level 30 with the Pond Master title. Many others, including Cookie Clicker, never end.
How do idle games make money? #
The genre uses three main models:
- In-app purchases for premium currency, permanent multipliers, instant prestige or timed boosts. AdVenture Capitalist sells gold and Egg, Inc. sells golden eggs.
- Ads, often “rewarded” videos you choose to watch for a bonus.
- A one-time price, like Melvor Idle on Steam or the paid mobile version of Universal Paperclips.
Frog Pond uses ads only, with no in-app purchases at all, so there’s no way to buy progress. The optional rewarded ads double an offline haul or a dragonfly chest.
Frequently asked questions #
Are idle games and clicker games the same thing? #
They overlap. Clicker games focus on active clicking or tapping, and idle games focus on automation. Most games do both, and the terms are used loosely. Our explainer on what a clicker game is covers the difference.
Do idle games ever end? #
Most don’t, but some do. Universal Paperclips, A Dark Room and The Longing have endings, and Frog Pond has a finish line at Pond Level 30.
Why are idle games so popular on phones? #
They suit short sessions. You can check in for a minute, make a few purchases and put the phone away while the game keeps earning, which fits the way people use phones.
Do idle games use a lot of battery? #
Not while closed. Offline earnings are calculated when you reopen the game, so nothing runs in the background.