You don't have Adobe Flash installed. Please install the plugin from Adobe site.
scroll down

DO YOU LIKE THIS GAME?
Yes
No
100% ( 4 ratings )
Shoot all invading aliens from space.
You are now playing Space Invaders that is part of the game series: Shooting! We recommend you to play similar games to Space Invaders like: Battlestar Ace, Smorgasbord Nightmare in Space!, Six Avg time: 2:37 , Plays: 954
Arcade, 1 player, Flash, Shoot 'Em Up, Space, Space Invaders.