Space Quest 3 was released in 1989 by Sierra. Space Quest 3 supports EGA graphics properly, means that the resolution is 320x200 and not the weird 200x150 in Space Quest 2. Sound cards also supported by better music and sound effects.
As we know, Roger Wilco is floating in space in his space pod when Space Quest 2 end. In Space Quest 3, he is captured by an automated garbage freighter. Roger's first task is to repair an old ship found there, the Aluminum Mallard and leave the scow.
He will meet some difficulties, as the Arnoid the Annihilator (obviously it is refering to Arnie!!) hunts him for not paying for a whistle in Space Quest 2. He eventually discovers the sinister activities of a video game company known as ScumSoft (Lucasarts?) run by the "Pirates of Pestulon" (Monkey Island Guybrush?).
Pestulon, a small moon of the volcanic planet Ortega, is covered in soft, moss-like vegetation, and dotted with twisted tree-like growths throughout. Elmo Pug, the CEO of ScumSoft, has abducted the Two Guys from Andromeda and is forcing them to design their awful games.
Roger somehow gets inside the supposedly impregnable ScumSoft Sea of cubicles and rescues the two programmers. In the process, Roger must fight Elmo in a game that combines giant Mecha-style combat with Rock 'Em Sock 'Em Robots.
There is a mini-game called Astro Chicken in Space Quest 3. Although winning the game is not necessary, but getting the high score we will reveal some special message leaved by the developers. Some kind of easter egg seems that.
In my opinion, Space Quest 3 is one of the best adventure game that have all the necessary ingredients of a successful adventure game: good graphics, good music and most importantly good story line.
You can download Space Quest 3 and its walkthrough here.