In game, from high above: the Hearthland valley at golden hour, a river winding between meadows and pine woods towards blue hills, a Sunhearth base under its shield domes by the bridge

Petalwar, a real-time strategy game

Guard your Heartbloom.

Now in beta for Windows and macOSENNLDEFR

Join the commandersPetalwar on mssgs

A brighter tomorrow
takes strategy

Enter the valley

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Three factions. One valley.

Different roots · different strengths · the same world to fight for

The trailer

How to play

110 seconds · filmed in the game · narrated · English captions

Build with your engineers, raise an army in your factories, then drag, right-click and break the enemy's petals. Played in the game itself, with its HUD, at its highest detail.

Read the narration

Petalwar: real-time strategy with tanks, aircraft and fleets. Every base grows around a Heartbloom, guarded by five petals. Break the enemy's petals, then bring down their bloom.

To build, select your engineers, pick a structure, and click to place it. Extractors mine matter. Generators make energy.

Select a factory and click a unit to queue it. Shift-click queues five. Tanks for the ground, aircraft for the skies, and fleets for the river.

To attack, drag a box around your army, then right-click a target. Artillery outranges defences, anti-air guards the sky, and shields cover the line. When the last petal falls, their Heartbloom lies exposed. Strike it down to win.

Climb the tiers for heavier armour, shield domes and missile silos. Three factions, each with its own army. Play the campaign, skirmish the AI, or battle your friends: up to eight commanders in one valley.

Guard the petals. Protect the bloom.

How a match is won

Five petals, one Heartbloom

Objectives · guard · break · bring it down

Every base grows around a Heartbloom on its centre pad, with five petals standing thirty metres out. While any one of them stands, the Heartbloom takes no damage, and units will not even target it.

  1. Guard your petals. Lines of light run from each standing petal to your bloom, and while one stands, nothing can touch it.
  2. Break theirs. A broken petal drops a shard. Carry it home to regrow one of your own in twenty seconds, or feed it to a full bloom for 250 matter.
  3. Bring their bloom down. The match ends when a Heartbloom falls, and the fog lifts so you can see what won it.
In game: a Sunhearth Heartbloom on its centre pad, linked by lines of light to the five petals standing around it, with a column of tanks and engineers nearby
In game: a Sunhearth Heartbloom with all five petals standing.

Inside Petalwar

Your next great campaign

The Hearthland campaign · eight levels · from your first extractors to three opponents at once

Campaign levels

Level 1 of 8

First Foothold

Claim the valley's matter and build your first army

The painted map of Hearthland Basin, as the game shows it beside the level
Hearthland BasinOne opponent across the river

New in this level Extractors, generators, storage and the ground factory · tier-1 tanks and engineers

  • Claim six deposits with extractors
  • Drive off three raiding parties
  • Break an enemy petal

Level 2 of 8

Hold the Line

Defences, shields and radar against an early raider

The painted map of Amber Hollow, as the game shows it beside the level
Amber HollowOne raider that strikes early and often

New in this level Point defences, barricades, shield generators, radar and the repair depot

  • Raise three point defences
  • Raise a shield generator
  • Break three enemy petals

Level 3 of 8

The Second Tier

Grow your economy and earn tech 2

The painted map of Sunpetal Ridge, as the game shows it beside the level
Sunpetal RidgeOne opponent on the ridge

New in this level Tech 2: factory upgrades, tier-2 units, artillery, fabricators, engineering hubs and the command relay

  • Upgrade a factory to tech 2
  • Raise four extractors to tier 2
  • Field an army of thirty

Level 4 of 8

Open Skies

Air factories, anti-air and the war above

The painted map of Cloverreach, as the game shows it beside the level
CloverreachOne opponent that takes to the air

New in this level Air factories and aircraft, anti-air, interceptor emplacements, drone catchers and refuel stations

  • Build an air factory
  • Put eight aircraft in the sky
  • Raise three anti-air emplacements

Level 5 of 8

Lake Fleets

Naval yards and fleets on open water

The painted map of Lilymere, as the game shows it beside the level
LilymereOne opponent across the lake

New in this level Naval yards and ships, and water defences

  • Build a naval yard
  • Launch six ships
  • Break three enemy petals

Level 6 of 8

The Third Tier

Tech 3, missile silos and the heaviest machines

The painted map of Foxglove Fields, as the game shows it beside the level
Foxglove FieldsOne turtle massed behind its defences

New in this level Tech 3: tier-3 units, missile silos, the Skyharbor, radar disruptors, stealth fields and every faction's own structures

  • Upgrade a factory to tech 3
  • Build a missile silo
  • Field an army of sixty

Level 7 of 8

Three Banners

Two opponents and a three-way war

The painted map of Trillium Mere, as the game shows it beside the level
Trillium MereTwo opponents who fight each other too

New in this level Everything, against two opponents at once

  • Guard your base with three shield generators
  • Field an army of eighty
  • Break five enemy petals

Level 8 of 8

The Petal Crown

The final battle: four commanders around the lake

The painted map of Petal Crown, as the game shows it beside the level
Petal CrownThree opponents at their sharpest

New in this level Everything, against three opponents at their sharpest

  • Reach tech 3
  • Field an army of 120
  • Break ten enemy petals

Each level opens more of the game. Then skirmish against the AI, or play together.

Explore the gallery

Skirmish

An opponent with a mind of its own

Single player · against the AI · four temperaments

The AI plays by the same rules you do. It claims deposits, builds power when production needs it, upgrades one factory at a time and attacks in waves that grow to forty. And it waits for your first order, so you can look around and build in peace.

Every opponent's form drifts during the match: a sharp one has sloppy spells and a sloppy one sharp spells, so the same trick rarely works twice.

The Multiplayer page over a still of the valley: Join game with a code or an address, View games nearby, Host game and Back
Multiplayer: host a match, join one by its code, or find games nearby.

Play it your way

Eight seats, one valley

Multiplayer · online or LAN · up to eight commanders

Play Together connects commanders online or on your local network, up to eight on Petal Crown. Host a match, share the invite code, and meet in the valley; any open seat can go to the AI. Or take on the AI alone, pause with P and set the game speed from half to triple.

Controls that strategy players know by heart, every one of them rebindable:

  • Q Attack-move
  • Shift Queue orders
  • Ctrl1–9 Control groups
  • G Assist
  • U Upgrade
  • T Patrol
  • I Idle engineers
  • F Select the army

On a MacBook, a two-finger swipe or a right-drag pans and a pinch zooms. Your first start opens a short voiced tutorial that shows you how.

See the highscores

Shared command

One base, more than one commander

Two to four commanders · one start · one Heartbloom

Two to four commanders can share a single start. You share the base, its Heartbloom and its fate, and when the match is over every one of you earns its result and experience in full.

  • The economy. Extractors, power and engineers, so the factories never wait.
  • The army. Tanks at the front, petals to break and petals to hold.
  • The air and the sea. Bombers, interceptors and the fleet on the river.

The easiest way to bring a friend into their first strategy game: learn one job at a time, next to someone who already knows the way. Shared matches count on the Teams and Co-op highscores.

How to play together

In game, from the air: a wing of Sunhearth bombers and interceptors flying over the base, the river and a crystal field beyond
In game: bombers and interceptors leave a Sunhearth base for the front.
In game, from the air: a Sunhearth base under its shield domes beside a mesa, the river and its stone bridge beyond, and the enemy's domes on the far bank

Free beta · ready for launch

Now in beta

Petalwar is out for Windows and macOS, with Linux to follow. It may still have bugs, so please report them to us on mssgs.

Why Petalwar

Strategy is too good to stay a niche

The story · told by its maker

Petalwar began on a Mac, with a Supreme Commander player and no Supreme Commander to play. It grew into a bigger idea: a real-time strategy game in which two to four friends command one base together, with a first hour that teaches instead of punishes, made to run natively on Mac, Windows and Linux.

Read the story How to play

In game: Sunhearth's ivory light tanks wait in the meadow grass at the start of a match, before their domed Heartbloom, its petals and two bubble shields, beneath a limestone outcrop
Sunhearth
In game: Mossglade's sage-green wheeled tanks wait in the meadow at the start of a match, before their leaf-shaped Heartbloom, its petals and two bubble shields, beneath a limestone outcrop
Mossglade
In game: Moonveil's white hover tanks wait under their own shield bubbles at the start of a match, before their spired Heartbloom and its petals, beneath a limestone outcrop
Moonveil

Questions

Before you plant your bloom

The beta · the platforms · the game

Can I play Petalwar now?

Yes. Petalwar is in beta: download it for Windows or macOS from this page, and the game's title screen offers a newer version when there is one. It may still have bugs, so please report them to us on mssgs.

Which platforms is it on?

Windows and macOS now, and Linux to follow. Petalwar is built in Unreal Engine 5 for the desktop, with a mouse or a trackpad; on a Mac it runs on Apple silicon.

What is a Heartbloom?

The heart of every base: a great crystal flower on the centre pad, with five petals standing thirty metres out. While any petal stands, the Heartbloom cannot be harmed. A match is lost only when a Heartbloom falls, and in a team match or a free-for-all a fallen side can still come back: three petal shards carried home by its engineers regrow it.

Can I play alone?

Yes. The campaign takes you through eight levels, and a skirmish pits you against the built-in AI, which waits for your first order before it starts. Every opponent is drawn with its own personality, raider, turtle, boomer or balanced, and its own good and bad spells.

Is there a campaign?

Yes, since 0.5.20: eight levels played in order, each opening more of the game. The first is the economy and tier-1 tanks against a slow opponent on Hearthland Basin; then come defences, tech 2, the air, the water and tech 3, and at the end two and three opponents at once. Each level has three objectives and up to three blooms to earn, and winning one opens the next. Campaign matches are not rated on the highscores.

Is there a tutorial?

Yes. Your first start opens a short voiced tutorial on Hearthland Basin: a narrator shows you how to look around the valley, zoom, select your engineers and send them with a right-click, and each step waits until you have done it. Skip it whenever you like, and play it again from the title screen's Tutorial row. The guide's tutorial page shows every step.

Why was Petalwar made?

Because there was no Supreme Commander for the Mac, and because real-time strategy deserves more players than the few of us who have played it for years. Petalwar keeps the big-picture command of Supreme Commander, makes the first hour gentler, and lets friends command one base together, so a new player can learn one job at a time next to someone who already knows the way. The About page tells the whole story.

Is there multiplayer?

Yes. Play Together connects commanders online or on your local network: one player hosts a match and shares its invite code, the others join and each picks a faction. Maps seat from two, as Hearthland Basin does, to eight on Petal Crown (the guide’s Maps and Skirmish AI chapter gives every map’s seats), and the AI can take any open seat.

Can friends command one base together?

Yes. In a match of more commanders, two to four people can share one start (split command): one runs the economy and the engineers, another leads the army at the front, a third takes the air or the sea. You share the base and its Heartbloom, and every one of you earns the match's result and experience in full, on the Teams or Co-op highscores. It is the easiest way to bring a friend into their first strategy game.

Will it feel familiar to Supreme Commander players?

It should: Petalwar started because there was no Supreme Commander or Forged Alliance for the Mac. Box select, right-click orders, attack-move on Q, Shift-queued orders, engineers that assist, control groups on Ctrl+1 to 9, adjacency bonuses and a strategic zoom with icons, around a simpler objective: guard your Heartbloom's five petals. Every key can be rebound in Options.

Does Petalwar run natively on a Mac?

Yes. Petalwar is built in Unreal Engine 5 to run natively on Mac, Windows and Linux, with no emulation or compatibility layer. The Mac build is for Apple silicon, beside the Windows build, and the Linux build follows.