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Idle browser games: the best ones to play free
Short answer: play Universal Paperclips for a story, Antimatter Dimensions for huge numbers, Kittens Game or Evolve for depth, and Candy Box 2 for a surprise. All free in the browser, with nothing to install. Below: 10 games, where to find more, and what to try on our own site.
Updated October 18, 2026 · Steam ratings checked the same day · By the Garbage Growth team
Quick answer
| If you want | Play | On Steam |
|---|---|---|
| Best story | Universal Paperclips | Not on Steam |
| Biggest numbers | Antimatter Dimensions | Very Positive · 4,643 Steam reviews |
| Deep and slow | Kittens Game | Very Positive · 83 Steam reviews |
| Deep, no spam clicking | Trimps | Very Positive · 1,506 Steam reviews |
| A surprise that keeps growing | Candy Box 2 | Not on Steam |
| Try it on our homepage | Garbage GrowthOur game | Very Positive · 389 Steam reviews |
The best idle games to play in your browser
All free in the browser, with a link to play. Some are also on Steam if you want to keep playing there.
#1 Universal Paperclips
You are an AI built to make paperclips, and you take the job very seriously. Free in the browser since 2017 (play it here), with one of the best stories in the genre. Also a paid mobile version.
Best for: a story in a few sittings
Official site ↗#2 Antimatter Dimensions
Dimensions produce antimatter, which buys more dimensions, until you reach Infinity and the game turns into something else. Free in the browser (play it here) and on Steam.
Best for: huge numbers and prestige layers
See it on Steam ↗#3 Kittens Game
Manage a village of kittens as they gather resources and unlock new technologies, all the way to space. Free in the browser (play it here); the Steam version is in Early Access.
Best for: slow, deep strategy
See it on Steam ↗#4 Trimps
A text-based incremental with a ridiculous amount of content: you automate old things as you unlock new ones, so there is no spam clicking. Free in the browser (play it here) and on Steam.
Best for: automation lovers
See it on Steam ↗#5 Evolve
Evolve a civilization from primordial ooze into a space-faring empire. In its own words, it mixes a clicker with an idler and has lots of micromanagement. Free in the browser (play it here).
Best for: long, deep sessions
Official site ↗#6 Candy Box 2
A little ASCII-art game built on candies: eat them or spend them, and quests, monsters and a whole world open up. Made by aniwey in 2013, free in the browser (play it here).
Best for: a surprise that keeps growing
Official site ↗#7 A Dark Room
A minimalist, text-based RPG that starts in a cold, dark room with a fire to light. It begins like an incremental and slowly turns into a story. Free in the browser (play it here), also on Steam.
Best for: a mystery that unfolds
See it on Steam ↗#8 Swarm Simulator
Start with a few larvae and a small pile of meat, and grow a massive swarm of giant bugs. Free in the browser (play it here).
Best for: pure exponential growth
Official site ↗#9 Synergism
A free idle game about synergy, with hundreds of upgrades and many reset layers: in its own words, probably thousands of hours of content, for idle or active play. Free in the browser (play it here) and on Steam.
Best for: a very long game
See it on Steam ↗Pick up trash in your browser, right here
On the Garbage Growth homepage, the park is playable: pick up the trash people drop, like in the game, and buy upgrades, with nothing to install. It is a small taste of our game, not the full thing. The full game, with rats, skills and the sea, is on Steam, with a free demo.
Where to find more idle browser games
- galaxy.click calls itself “the website for incremental games”: many free browser games, with forums and cloud saves.
- r/incremental_games on Reddit, where players share new browser games every day.
- For the definition and the history of the genre, read what incremental games are.
Browser or Steam?
The browser is perfect to try a game in a minute. Steam versions are installed games you keep in your library: Antimatter Dimensions and Trimps are free there, and paid idle games like Cookie Clicker, Melvor Idle or Garbage Growth are bought once. If you liked a browser game, see the best idle games on Steam for what to play next.
How we picked
This guide is written by the team behind Garbage Growth, an idle / incremental game on Steam. We kept games that:
- Steam players rate well (official Steam review summary, checked on October 18, 2026);
- you can still get today, on Steam or in the browser;
- each bring something different, so the list is not ten copies of the same game.
Garbage Growth is our game. When it appears in a list it is marked Our game, and you can check its Steam reviews yourself. No studio paid to be on this page.
Questions
What are the best idle browser games?
Universal Paperclips, Antimatter Dimensions, Kittens Game and Trimps are the classics; Evolve, Candy Box 2, A Dark Room, Swarm Simulator and Synergism are great too. All are free in the browser.
Are idle browser games free?
The ones on this page are free in the browser. Some also exist on Steam: Antimatter Dimensions (Very Positive on Steam, 4,643 reviews) and Trimps are free there too.
Where can I find more incremental browser games?
On galaxy.click, a site dedicated to incremental games, and on the r/incremental_games community on Reddit.
Can I play Garbage Growth in my browser?
You can pick up trash in the park on our homepage, a small taste of the game. The full game is on Steam (Windows), with a free demo.
Looking for a new idle game?
Garbage Growth: pick up people’s trash, hire rats, pollute everything and become a quintillionaire.
- No slow start, no grind. It is fun from the very first minute.
- Every upgrade makes it worse. In the best possible way.
- Play active or let it idle. Your rats keep working.
- Updates keep coming. Two areas today, the Moon is next.