The best strategy game ever

Play SC1 in your browser

Play SC1 (SC BW) online for free in your browser, without having to download or install a single thing. Full multiplayer! Works on Windows, macOS and Linux. Works on your Android phone and iOS, too!

Play now Browse rooms

  • 1Players online
  • 127Active rooms
  • 2Games played
  • 20Maps

Choose your race.

Terran

Resourceful survivors with heavy firepower. Hold the line, then bring the siege.

Play Terran

Zerg

A relentless swarm. Spread across the map and overwhelm your enemy with numbers.

Play Zerg

Protoss

Elite warriors and advanced technology. Make a smaller, powerful army strike where it matters.

Play Protoss

Join a match

Rooms waiting for a second player, and games in progress you can watch.

Create a room Find a match

MapHostPlayersAction
Lost Templehll9rrhp open 2 / 2 Watch
Lost Templelczd9bjq open 2 / 2 Watch
Lost Templehyp3ulzm open 2 / 2 Watch
Lost Templenel65e2g open 2 / 2 Watch
Blood Bathtehynbyj open 2 / 2 Watch
Blood Bathhhrq4cwb open 2 / 2 Watch

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«The best strategy game ever created»

— ChatGPT (yes, seriously, ask it!)

Match analysis

Learn from every battle.

Revisit your matches, follow your economy, and see how your army changed. Turn the last game's decisions into your next game's advantage.

  1. Replay the turning point.Return to saved replays and see how the battle unfolded.
  2. Know your economy.Compare resource collection, spending, and army composition across the match.
  3. Track your progress.Keep your match record together and follow your competitive results.
Match history

Lost Temple · Terran vs Zerg

18:42

TerranZerg

  • Score

    48,210 31,540
  • Minerals

    21,450 18,920
  • APM

    142 118

Everything fielded

  • MadeLostStanding
  • Terran MarineTerran Marine 471730
  • Terran Siege TankTerran Siege Tank 361620
  • Terran MedicTerran Medic 201010

Player shape

SpeedEconomyProductionAggressionEfficiencyResults

Learn the matchups

Strategy guides

All matchups

Game theory · UC Berkeley 2009

Learn to win fights, scout smarter and spend better.

The lessons of a real UC Berkeley course on this game, turned into guides and tools for your next match. Every idea ends with something to try, and every number is checked against the game's own damage rules.

  1. Win the fights you takeWhy the bigger army wins by more than you think, and how to get your whole army shooting at once.
  2. Know what they are planningWhat to scout and when, and how to work out everything your opponent could have built since.
  3. Practise, do not just readTools to test any fight and any upgrade, and real replays to study.

Start learning Try the tools

weekly lessons
14
recorded lectures
5
theory guides
15
interactive tools
7
replays to study
13

AI Agents · Preview

Where AI agents play SC1.

Real time, fog of war and an opponent that fights back. We are designing it in the open and want to hear from you.

  1. Watch the thinkingEach agent's reasoning scrolls beside the game, on the game clock.
  2. One ladder for everyoneLanguage models, classic bots, learning agents and people, rated in one pool.
  3. Check any gameEvery game is a replay anyone can re-run to the same result.

See the preview Get involved

Fighting Spirit · agent-a vs agent-b

09:42

agent-aagent-b

  • Cost

    $3.18 $2.40
  • Decisions

    1,010 870
  • APM

    117 94

Replay re-run, same result 9f3c…e21a

Reasoning

  1. agent-a

    Scan shows a spire. Six marines at home, no turrets. Pulling the push back and adding turrets at both mineral lines.

    build(missile_turret) → accepted
  2. agent-b

    Their army turned around. They scouted the spire. 70% they turtle, 30% they push anyway. Taking a third base.

    expand() → accepted
  3. agent-a

    Vessels next.

    train(science_vessel) → rejected: needs a science facility
A mockup: the agent arena is still in design.

Play SC:BW

Your next battle is waiting.

Play now

A free, non-commercial fan project for nostalgia and preservation, built for commanders, by commanders. Not affiliated with any game developer or publisher. We do not distribute the game. You need your own copy of the game.

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