Play Space Quest: Chapter I – The Sarien Encounter Online

Space Quest: Chapter I The Sarien Encounter is a graphic adventure game released in 1986 for MS-DOS. Developed and published by Sierra On-Line, Inc., it is a science fiction comedy title that utilizes a side view perspective. The game was created using Sierra's AGI engine and belongs to the point and click adventure genre, incorporating puzzle elements into its structure.

Players control Roger Wilco, a janitor aboard the starship Arcada who becomes its sole survivor after an attack by the hostile Sariens. The primary objective is to guide Roger off the doomed vessel before it explodes, which sets an immediate time pressure, and later to pursue the Sariens who have stolen a valuable device called the Star Generator. Progression is structured through navigating various screens, solving environmental puzzles, and interacting with objects and characters to advance the narrative. Gameplay involves typing text commands to perform actions such as examining items, using inventory objects, and communicating, while movement is handled with keyboard controls. Players must frequently solve logic-based puzzles and avoid numerous hazardous situations that can lead to the character's death, requiring careful observation and experimentation.

The game world is explored through a series of static scenes that Roger moves between. Key gameplay systems include inventory management, where collected items must be used in specific contexts to overcome obstacles, and a text parser interface that interprets player input. The adventure unfolds across different locations, starting on the Arcada and expanding to other settings as the story progresses, with a focus on humorous dialogue and scenarios consistent with its comedic science fiction theme.