Screenshots1 / 2
Red Alert
红色警报
Red Alert is an action arcade game released in 1981, developed by Irem and GDI. Players control a ground-based cannon defending against waves of incoming enemy aircraft, missiles, and other aerial threats. The game supports two players simultaneously, allowing cooperative play against escalating enemy formations. Using a joystick to aim and a button to fire, players must shoot down targets before they reach the ground or cause damage. The game progresses through successive attack waves that increase in speed and complexity, demanding quick reflexes and accurate targeting. Red Alert shares visual and mechanical similarities with other early-1980s fixed-shooter arcade titles, though its two-player mode and specific enemy patterns give it a distinct character.
- Developer
- Irem + GDI
- Released
- 1981
- Platform
- Arcade
- Genre
- Action
- Players
- 2P
- Rating
- 4.8 / 5 (4.2K)
- Last updated
Red Alert Controls — Arcade Keyboard Keys
Default keyboard bindings for Red Alert on our in-browser Arcade emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | Joystick Up | Move up |
| ↓ | Joystick Down | Move down |
| ← | Joystick Left | Move left |
| → | Joystick Right | Move right |
| X | Button 1 | Primary action (jump / confirm) |
| Z | Button 2 | Secondary action (attack / cancel) |
| S | Button 3 | Tertiary action |
| A | Button 4 | Quaternary action |
| Q | Button 5 | Fifth button |
| W | Button 6 | Sixth button |
| 5 | Insert Coin | Insert coin |
| 1 | 1P Start | Start / Pause |
Coin and Start are convention "Insert Coin: 5" and "1P Start: 1". Some arcade boards expect specific button mappings — check the in-game prompts on coin-up.
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Red Alert Longplay & Gameplay Videos
Watch a full playthrough of Red Alert on Arcade before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Red Alert" Arcade longplay 1981
External references
Frequently Asked Questions
When was Red Alert released?
Red Alert was released in 1981 for the Arcade.
Who developed Red Alert?
Red Alert was developed by Irem + GDI, available to play in your browser on RetroGameSpace.
How many players does Red Alert support?
Red Alert supports up to 2 players, ideal for couch co-op or competitive sessions on the Arcade.
What type of game is Red Alert?
Red Alert is a Action game for the Arcade, playable instantly in your browser — no downloads, no installs.
How can I play Red Alert for free?
Open this page and click "Play Now" — Red Alert runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Red Alert in the browser?
No. Red Alert streams from a public archive into a browser-side Arcade emulator. Nothing is installed on your computer.
Can I save my progress in Red Alert?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Arcade cartridge supported.
Does Red Alert work on mobile devices?
Yes — the Arcade emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Red Alert this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Red Alert. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
