About Lagario

What's different from other agar.io-style games

The core idea is the one you know: eat what's smaller, avoid what's bigger. Lagario 3 builds everything else around real physics. For a side-by-side table, see agar.io with gravity: how Lagario 3 plays differently.

• Real gravity: momentum, orbits, slingshots and a live trajectory line.
• Stars that burn, dust belts and asteroids in orbit.
• Collisions that knock off edible debris: in Orbit (or with the Orbit physics modifier), planets of the same size bounce off each other instead of one eating the other.
• Ejecting mass works as thrust. If you've played Osmos, moving by throwing mass behind you will feel familiar.
• 5 modes, 8 modifiers and bots to keep rooms lively.
• Multiplayer through a shared link: no download, no account, no game server (peer-to-peer).
• 29 planets (20 to unlock), 29 achievements, daily missions and levels.
• Desktop and mobile, in English and Portuguese.

Play free-for-all in Orbit, or bring the physics into Collapse (a battle royale in a shrinking universe), Teams and Gravity chaos. There are black holes, comets and wormholes too. The how-to-play guide covers every mode, modifier and control.

Launch trailer

From a 2018 weekend blob game to Lagario 3: Órbita

1. 2018: a weekend blob game

   Lagario started as a weekend project: planeta.js, vector.js and a lot of will.

2. Lagario (version 1)

   A planet with inertia and gravity, dust, asteroids, black holes, power-ups, 3 modes and bots, with peer-to-peer multiplayer hosted in a player's browser, host migration, a room lobby with no game server, offline play as a PWA, and English and Portuguese.

3. Lagario 2: Colapso

   Added Collapse, a battle royale where the safe zone shrinks in stages, plus comets, wormholes, emotes, room modifiers, levels, achievements, daily missions and new planets to unlock. It also brought a new WebGL2 graphics engine, a killcam replay and a 1-minute tutorial.

4. Lagario 3: Órbita

   Rebuilt around real physics. Every planet carries momentum. Stars and big planets pull with inverse-square gravity, and a dotted line shows where you're falling. Dive past a star to slingshot out, complete an orbit to sweep up its dust belt, and get too close and you burn. In Orbit (or with the Orbit physics modifier), planets of the same size collide instead of eating each other, and ejecting mass works as thrust. Your Lagario 2 profile carries over.

Play earlier versions (v1 and v2)

Earlier versions stay online, frozen as they were, each with its own saved data. Play Lagario 2: Colapso at /v2/ or the first Lagario at /v1/ to see how the game got here.

How multiplayer works without a game server

Whoever creates a room hosts the match: their browser runs the simulation in a Web Worker, and the other players connect straight to it over WebRTC, with Nostr relays helping them find each other. If the host leaves, another player takes over the room automatically and the match goes on. The site is static apart from a small optional function that hands out TURN relay credentials.

• Play with friends by link: the Invite button copies a link to your room, or friends can type its 5-character code.
• Up to 16 people per room (12 by default). Bots top the room up to 14 planets by default, and the room's creator can set that from 0 (no bots) to 30.
• Public or private rooms, and a list of public rooms to join.

Free, no ads, no account, installable

• Free, with no ads. No account either: pick a name and play.
• In the browser, on desktop or mobile, with mouse and keyboard or touch controls.
• Installable as an app (PWA) from your browser, on a computer or a phone.
• English and Portuguese (Brazil). The game follows your browser's language, and you can switch it in Settings.
• Graphics: WebGL, with a Classic (Canvas 2D) renderer as an option and fallback.

Who made it

Lagario is made by Thomas Reichmann, an independent developer from Brazil, in TypeScript and WebGL. It's an independent game in the agar.io genre and is not affiliated with agar.io.