Play Antimatter Dimensions Online — Free, No Download
Antimatter Dimensions
Free Idle Incremental Game
💾 Your Antimatter Dimensions progress is saved automatically in your browser. Play on Steam or Android for cloud saves.
Play Antimatter Dimensions Online — Free, No Download
The ultimate idle incremental game. Collapse the universe, earn Infinity, reach Eternity, and reshape Reality — play Antimatter Dimensions entirely in your browser with no install required.
Watch: Antimatter Dimensions Gameplay Overview
New to Antimatter Dimensions? This gameplay overview covers the core loop — from buying your first Dimension to earning your first Infinity Point and unlocking the deeper prestige layers.
What Is Antimatter Dimensions?
Antimatter Dimensions is a free-to-play idle incremental game created by Hevipelle, first released on May 3, 2016. Your goal is to produce as much antimatter as possible by purchasing and upgrading Dimensions. Each of the 8 Dimensions feeds into the one below it, creating exponential growth that eventually lets you collapse the universe and start over — stronger each time. With 3 deep prestige layers, 100+ achievements, and months of content, Antimatter Dimensions is widely regarded as one of the best idle games ever made.
Key Features of Antimatter Dimensions
8 Dimensions
From 1st to 8th — each Antimatter Dimension produces the one below it, creating compounding exponential growth that scales into numbers beyond comprehension.
3 Prestige Layers
Infinity, Eternity, and Reality — each layer resets your Antimatter Dimensions progress in exchange for massively stronger currencies, upgrades, and new mechanics.
100+ Achievements
Including 36 hidden secret achievements with quirky unlock conditions. Completing achievements in Antimatter Dimensions grants permanent stat bonuses.
Play Antimatter Dimensions on Any Platform
How to Play Antimatter Dimensions — Quick Start Guide
Buy Your First Antimatter Dimension
Purchase the 1st Antimatter Dimension to start producing antimatter. Every 10 manual purchases of the same dimension gives a ×2 multiplier boost. Buy Tickspeed upgrades whenever available — they speed up all Antimatter Dimensions production globally and are almost always the best value early on.
Unlock Higher Dimensions with Dimension Boosts
Once you have 20 of the highest unlocked Antimatter Dimension, trigger a Dimension Boost to unlock the next tier and multiply your output. If you already have 1 galaxy and 1 dimension boost, focus on Tickspeed upgrades and accumulate more Dimension Boosts before resetting for your next Antimatter Galaxy — the compounding effect is worth the wait.
Use Dimensional Sacrifice for Massive Multipliers
After your 5th Dimension Boost, Dimensional Sacrifice becomes available. Sacrificing Dimensions 1–7 resets their amounts but gives your 8th Antimatter Dimension a multiplier. For timing details, read the Dimensional Sacrifice guide.
Earn Your First Antimatter Galaxy
Collect enough 8th Antimatter Dimensions to buy an Antimatter Galaxy. Each galaxy increases the Tickspeed reduction percentage. Because Tickspeed stacks multiplicatively across all Antimatter Dimensions, more galaxies create exponentially faster production — making Antimatter Galaxies the single most impactful reset mechanic in the early game.
Reach Infinity and Beyond
Hit 1.8e308 antimatter to trigger a Big Crunch and earn your first Infinity Point. Spend Infinity Points on upgrades in the Infinity tab, then Break Infinity to remove the antimatter cap entirely. Breaking Infinity lets you accumulate far more antimatter per crunch, accelerating your Antimatter Dimensions run dramatically.
Prestige Through Eternity and Reality
Eternity resets your Infinity progress in exchange for Eternity Points and unlocks the Time Studies tech tree — a branching system of powerful upgrades unique to Antimatter Dimensions. Reality resets everything for Glyphs and Reality Machines, opening access to the seven Celestials and the true endgame of Antimatter Dimensions.
Quick Tips for Antimatter Dimensions
- 💡 Always prioritize Antimatter Galaxies over Dimension Boosts when both are available — galaxies compound faster
- 💡 Use Bulk Buy (buy max) for Tickspeed to save time in the early Antimatter Dimensions run
- 💡 Dimensional Sacrifice is worth doing as soon as it unlocks — don't wait for a 'perfect' moment
- 💡 Export your Antimatter Dimensions save string regularly to back up progress across devices
- 💡 The Time Studies tree has mutually exclusive paths — read each branch carefully before spending Eternity Points
Why Antimatter Dimensions Is Worth Your Time
100% Free
No paywalls, no energy systems, no forced ads. The full Antimatter Dimensions experience — from your first dimension purchase to the final Celestial — is completely free on web, Steam, and Android.
Play Anywhere
Browser, Steam, or Android — your Antimatter Dimensions save goes with you. Export a save string to move between devices instantly, or use Steam cloud saves for automatic sync across all your machines.
Months of Content
Three prestige layers, 7 Celestials, 12 normal Challenges, 12 Eternity Challenges, a fully scriptable Automator, and an endgame that takes months to reach. Antimatter Dimensions always has a next goal waiting.
Deep Automation
Build Automator scripts to run Antimatter Dimensions while you're away. From simple autobuyers to complex conditional logic — the Automator rewards players who enjoy programming-style optimization.
Frequently Asked Questions About Antimatter Dimensions
What is Antimatter Dimensions?
Antimatter Dimensions is a free idle incremental game by Hevipelle, originally released on May 3, 2016. You purchase Dimensions to produce antimatter, then reset for increasingly powerful prestige currencies — Infinity Points, Eternity Points, and Reality Machines. Antimatter Dimensions is available free on web, Steam, and Android, and is widely considered one of the deepest idle games available.
Is Antimatter Dimensions free to play?
Yes — Antimatter Dimensions is completely free on the web at ivark.github.io, on Steam, and on Android via Google Play. Optional in-app purchases exist on Steam and mobile but are not required to complete the game. The full Antimatter Dimensions experience is accessible without spending anything.
I have 1 galaxy and 1 dimension boost — what should I do next?
Focus on buying Tickspeed upgrades and saving up for more Dimension Boosts before your next Antimatter Galaxy. Each additional galaxy compounds Tickspeed reduction across all Antimatter Dimensions, so the more boosts you have before resetting, the faster your recovery after the galaxy reset.
What does Dimensional Sacrifice do in Antimatter Dimensions?
Dimensional Sacrifice resets the amounts (not purchases) of Dimensions 1–7 to give your 8th Antimatter Dimension a multiplier. It unlocks after your 5th Dimension Boost. For practical timing, see the Antimatter Dimensions Dimensional Sacrifice guide.
What does an Antimatter Galaxy do?
Each Antimatter Galaxy increases the percentage reduction applied to Tickspeed across all Antimatter Dimensions. Because Tickspeed stacks multiplicatively, more galaxies create exponentially faster production — making Antimatter Galaxies the single most impactful reset mechanic in the early game of Antimatter Dimensions.
How do I get secret achievements in Antimatter Dimensions?
Secret achievements in Antimatter Dimensions have hidden requirements. Some examples: click the first secret achievement itself to unlock it, input the Konami Code (↑↑↓↓←→←→BA) for '30 Lives', enter 69 in any autobuyer box for 'Nice', or open the browser console for 'Stop right there criminal scum!' (PC only). There are 36 secret achievements in total.
Can I save and import my Antimatter Dimensions progress?
Yes. Antimatter Dimensions auto-saves to your browser's local storage. You can also manually export a save string to your clipboard and import it on any device or browser. On Steam, Antimatter Dimensions cloud saves are supported automatically.
What is the difference between Infinity, Eternity, and Reality in Antimatter Dimensions?
These are the three prestige layers of Antimatter Dimensions. Infinity resets your dimensions when you hit 1.8e308 antimatter, earning Infinity Points. Eternity resets Infinity progress for Eternity Points and unlocks the Time Studies tech tree. Reality resets everything for Glyphs and Reality Machines, opening the Celestial endgame — the deepest content in Antimatter Dimensions.