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Spacewar

Game overview

Spacewar

Lemoine Yann · Aug 13, 2026

The space duel that started it all, reinvented. Vector ships, a planet that pulls you in, torpedoes, phaser and hyperspace. An adaptation of the 1980s MS-DOS version of the legendary Spacewar! (PDP-1, 1962). 1 to 4 players, local and online, friends or bots. CRT neon, pure inertia.

Action Indie Simulation
Last tracked players
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24-hour change
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Delayed observation · last tracked . Values marked unavailable are not estimated.

About this game Read the full description
The oldest duel in space, replayed like day one - only better.

In 1962, on a PDP-1 computer the size of a wardrobe, a handful of MIT students invented one of the very first video games in history: Spacewar!. Two ships, a merciless star, and gravity as the only law.

This version doesn't go all the way back to the PDP-1: it's an adaptation of the 1980s MS-DOS version, the one that lit up the phosphor screens of a whole generation of PC players. We kept its soul - the vector lines, the unforgiving inertia, the twitchy duel - and opened it up to four players, online and on the couch alike.

A duel of precision and nerve


No lives, no XP bar: just you, your thrust, and an energy reserve that drains four times faster than it recharges. Every maneuver costs you.

  • Torpedo - fired along your velocity vector: inertia decides everything.
  • Phaser - a mid-range hitscan beam that tears through... and vaporizes incoming torpedoes.
  • Cloak - vanish from the radar, at a steep price.
  • Hyperspace - flee the impact... or reappear in the worst possible spot.
  • The planet - dead center: its gravity pulls you in, its touch disintegrates you.

Up to 4, anywhere


  • 1 to 4 players, local AND online, in the same game.
  • Bots with three temperaments - defensive, offensive, balanced: real opponents, not targets.
  • Two players on one keyboard, on a controller, or a mix of both.
  • Steam Deck compatible.

Built for game night


Planet or not, gravity or not, score limit: set up the match that suits you. Eleven languages, fully playable on keyboard or controller.

The duel that invented the genre. Now it's your turn to replay it.
Media gallery 5 screenshots · 0 videos
Spacewar game capsule image

Screenshots

Spacewar screenshot 1
Spacewar screenshot 2
Spacewar screenshot 3
Spacewar screenshot 4
Spacewar screenshot 5

Player activity

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Latest news

All news on Steam ↗
Update 1.0.12 - Leaderboards, achievements and simpler controls
System requirements Windows · macOS · Linux

Windows

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 64 bits
  • Processor: Intel Core i3-2100 / AMD FX-4100 (SSE2 required)
  • Memory: 2048 MB RAM
  • Graphics: Intel HD Graphics 4000 / NVIDIA GeForce GT 630 / AMD Radeon HD 6570 — DirectX 11 compatible
  • Storage: 200 MB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 64 bits
  • Processor: Intel Core i3-2100 / AMD FX-4100 (SSE2 required)
  • Memory: 2048 MB RAM
  • Graphics: Intel HD Graphics 4000 / NVIDIA GeForce GT 630 / AMD Radeon HD 6570 — DirectX 11 compatible
  • Storage: 200 MB available space

macOS

Minimum

Minimum:
  • OS: macOS Monterey 12 or later
  • Processor: Intel Core i3-2100 / AMD FX-4100 (SSE2 required)
  • Memory: 2048 MB RAM
  • Graphics: Metal-capable GPU (any Mac ≥ 2012)
  • Storage: 200 MB available space

Recommended

Recommended:
  • OS: macOS Monterey 12 or later
  • Processor: Intel Core i3-2100 / AMD FX-4100 (SSE2 required)
  • Memory: 2048 MB RAM
  • Graphics: Metal-capable GPU (any Mac ≥ 2012)
  • Storage: 200 MB available space

Linux

Minimum

Minimum:
  • OS: Ubuntu 22.04 LTS (64-bit)
  • Processor: Intel Core i3-2100 / AMD FX-4100 (SSE2 required)
  • Memory: 2048 MB RAM
  • Graphics: OpenGL 3.2+ or Vulkan-capable GPU
  • Storage: 200 MB available space

Recommended

Recommended:
  • OS: Ubuntu 22.04 LTS (64-bit)
  • Processor: Intel Core i3-2100 / AMD FX-4100 (SSE2 required)
  • Memory: 2048 MB RAM
  • Storage: 200 MB available space
Game details Languages, features & support
Publisher
Cognitys
Brazilian rating
14
Steam Germany rating
12
Achievements
12
Controller support
full
Features
Single-player, Multi-player, PvP, Online PvP, LAN PvP, Shared/Split Screen PvP, Shared/Split Screen, Cross-Platform Multiplayer, Full controller support, Custom Volume Controls, Adjustable Difficulty, Keyboard Only Option, Playable without Timed Input, DualShock Controller Support, DualShock Controller Support, DualSense Controller Support, DualSense Controller Support, Stereo Sound, Remote Play Together, Family Sharing
Languages
English, French, Italian, German, Spanish - Spain, Simplified Chinese, Korean, Japanese, Polish, Portuguese - Brazil, Portuguese - Portugal, Russian
More analysis Activity patterns, updates & developer tools

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Game Insights

Buy Verdict

Watch — $2.99.

Decent deal at 0% off, but might drop further. Watch for better opportunities.

▲ ~13 days until next sale

Update Momentum

Moderate Updates — 0 patches in last 30 days.

1 patches and 1 news items in last 180 days. Latest patch effect size: 0.00.

▼ No recent patches

Activity Heatmap

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Developer Analytics

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Frequently Asked Questions

Is Spacewar worth buying right now?
Watch — $2.99. Decent deal at 0% off, but might drop further. Watch for better opportunities.
When does Spacewar go on sale?
Decent deal at 0% off, but might drop further. Watch for better opportunities.
Is Spacewar still getting updates?
Moderate Updates — 0 patches in last 30 days. 1 patches and 1 news items in last 180 days. Latest patch effect size: 0.00.
Is Spacewar free to play?
Spacewar costs $2.99 on Steam.
What genre is Spacewar?
Spacewar is a Action, Indie, Simulation game.
Who developed Spacewar?
Spacewar was developed by Lemoine Yann and published by Cognitys.
What platforms does Spacewar support?
Available on Steam for Windows, macOS, Linux.