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About AutoArena

AutoArena is a free tactical auto battler that runs in your web browser — nothing to download, no sign-up beyond a name. Draft a hero and 4 minis, deploy them on a 7×8 board with an elixir budget, star up duplicates, and watch a deterministic battle decide each round of a best-of-5 ranked match.

AutoArena at autoarena.gg is an independent browser game made by the software studio of Sydney Quant, an Australian proprietary trading firm. It is not the upcoming Steam game AutoArena by MoJo Game, nor any of the AI tools that use the name, and is not affiliated with them.

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At a glance

How a match works

Before a match you choose a deck: one hero and 4 minis. Each round you get up to 30 seconds to spend elixir — new minis, or stars on the ones you have — and to place them on your half of a 7×8 board. Then the battle plays itself, usually in twenty-five to thirty seconds. Your army carries over to the next round; the first to 3 round wins takes the match.

Unspent elixir carries over, and whoever lost the last round draws 2 more for the next, so a match is rarely over before its last round — yet both players draw the same 46 elixir over a full match.

Under the hood

Every battle is a deterministic simulation stepped twenty times a second: the same armies and the same seed produce the same fight, tick for tick. The match server runs it and both players replay the identical result, so nothing is decided in the browser.

Higher up the ladder, the AI opponent plans each round by playing candidate armies out against what it can see of yours. Balance is checked the same way — every deck is played against every other deck at several strengths of play before a change ships.

The characters are rigs drawn in code and every sound effect is synthesised in the browser, so apart from its music the game ships no art or audio files.

The setting: The Gildenring

The Gildenring is the arena of Harrowmere, a ring of sand in the old quarry. The nine guilds watch from the stands and throw roses or tomatoes.

Harrowmere began as a quarry town. When the stone ran out, the guilds drained the flooded pit and floored it with sand. The first Games were held there the spring after the Long Thaw.

Two gates open onto the sand. The Sun Gate faces the town and the Moon Gate faces the moor. The challenger comes in by the Sun Gate and the challenged by the Moon Gate.

The fighters are small. Everyone in Harrowmere calls them minis.

The nine guilds are the Smiths, Millers, Chandlers, Dyers, Fletchers, Coopers, Vintners, Masons and Mummers; their banners hang on the wall and their colours fill the stands. Carved along the wall: "nine guilds · one ring", "wait for the horn", "stand where you are set", "roses for the bold", "win it on the sand", "fight for your guild", "the guilds are watching".

Who makes it

AutoArena is made in Sydney, Australia, by the software studio of Sydney Quant, a proprietary trading firm that builds its own systems and keeps a small games studio alongside them. The studio's site at www.sydneyquant.com describes the game and its other work.

Streaming, videos and press

You are welcome to stream AutoArena and to record and publish videos of your own play, monetised ones included. The rules and the numbers on these pages are generated from the game's own code, so they are always current: quote them freely.

Questions, press and partnerships: matt@autoarena.gg.

The roster

• PitfighterMelee · 2 elixir · Frenzy
• LongshotRanged · 2 elixir · Piercing Shot
• ShieldbearerTank · 3 elixir · Shield Wall
• ReaverSplash Melee · 3 elixir · Skull Slam
• JuggernautCharger · 4 elixir · Trample
• ShadeInfiltrator · 3 elixir · Shadow Leap
• PyromancerSplash Ranged · 4 elixir · Arcane Blast
• MenderSupport · 3 elixir · Radiance
• WardenGuard · 3 elixir · Shackle Bolt
• PowderkegBomber · 3 elixir · Blast
• GafferGrappler · 3 elixir · Haul
• JavelineerSkirmisher · 2 elixir · Javelin
• MasonBuilder · 3 elixir · Shore Up
• DyerHexer · 2 elixir · Indigo

• WarlordHero · Bruiser · Groundbreaker
• HuntressHero · Ranged · Arrowstorm
• BulwarkHero · Defense · Aegis