Star Control II
Adventure
Toys for Bob
DOS, 3DO
1992
Fifteen years before Mass Effect, Star Control II is the prototypical adventure game in space.
With incredible writing, music, and gameplay, this game is a true 10/10. Star Control II still holds up today - don't believe me, download and play it for free at http://sourceforge.net/projects/urquanmastershd/.
Players get to explore the galaxy, traveling at their own pace, from star system to star system, gaining resources and meeting new races. The conversations with each race makes them unique and enjoyable. The galaxy is internally consistent - everything you need to learn about the galaxy is available without a guide, you can explore and converse and gain insight in every aspect of the game. The galaxy is dynamic - as you meet the races, you will be able to see their spheres of influence and watch as those spheres move, grow, and shrink, affecting your time in their areas of space. Combat is a fast and furious, top-down, space melee. Every race has their own unique ships that fight very differently.
This game has done everything right and has yet to meet its equal.
Please consider this game as an inductee to the Video Game Hall Of Fame.