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Space Odyssey
太空奥德赛
Space Odyssey is an action arcade game released by Sega in 1981. Players control a spaceship and must shoot down waves of alien enemies while avoiding incoming fire. The game supports two players, allowing alternating play. Enemies attack in formation patterns typical of the fixed-shooter style, and the difficulty escalates as players progress through successive waves. The player uses a joystick to move the ship horizontally and a fire button to shoot upward at descending enemy formations. Shields or barriers may provide limited cover during combat. Completing waves leads to increasingly aggressive enemy patterns, requiring faster reflexes and more precise aiming as the game advances.
- Developer
- Sega
- Released
- 1981
- Platform
- Arcade
- Genre
- Action
- Players
- 2P
- Rating
- 4.5 / 5 (3.9K)
- Last updated
Space Odyssey Controls — Arcade Keyboard Keys
Default keyboard bindings for Space Odyssey 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.
Space Odyssey Longplay & Gameplay Videos
Watch a full playthrough of Space Odyssey 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
"Space Odyssey" Arcade longplay 1981
External references
Frequently Asked Questions
When was Space Odyssey released?
Space Odyssey was released in 1981 for the Arcade.
Who developed Space Odyssey?
Space Odyssey was developed by Sega, available to play in your browser on RetroGameSpace.
How many players does Space Odyssey support?
Space Odyssey supports up to 2 players, ideal for couch co-op or competitive sessions on the Arcade.
What type of game is Space Odyssey?
Space Odyssey is a Action game for the Arcade, playable instantly in your browser — no downloads, no installs.
How can I play Space Odyssey for free?
Open this page and click "Play Now" — Space Odyssey runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Space Odyssey in the browser?
No. Space Odyssey streams from a public archive into a browser-side Arcade emulator. Nothing is installed on your computer.
Can I save my progress in Space Odyssey?
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 Space Odyssey 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 Space Odyssey this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Space Odyssey. 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.
