For me, it's the PC game Might and Magic VII: For Blood and Honor. Not Heroes of Might and Magic. Every time I mention the game, people always go "OH! Heroes of Might and Magic?" NO! That is not what I mean!
You know you want to be a part of this adventure...
It was single player, but you got to create 4 different unique characters to make up your party.
It also had a plot:
"At the end of Might and Magic III, the eight main characters piloted a seedship named "the Lincoln" in pursuit of the Guardians Corak and Sheltem. However, rather than landing on the world of Xeen as the Guardians did, they drifted off-course and eventually crash-landed in the seas on the distant planet of Enroth. After an ensuing disagreement, the eight characters split up into two groups - one "good" and one "evil" - and begin to explore the nearby continent of Antagarich, each with their own agenda."
I really enjoyed the prequel, Might and Magic: The Mandate of Heaven, and the sequel, Day of the Destroyer
In short, this series cemented my love of 3DO and contributed heavily to my affinity for gaming as a whole.
What's a favorite game of yours that doesn't get enough respect?

It was single player, but you got to create 4 different unique characters to make up your party.
It also had a plot:
"At the end of Might and Magic III, the eight main characters piloted a seedship named "the Lincoln" in pursuit of the Guardians Corak and Sheltem. However, rather than landing on the world of Xeen as the Guardians did, they drifted off-course and eventually crash-landed in the seas on the distant planet of Enroth. After an ensuing disagreement, the eight characters split up into two groups - one "good" and one "evil" - and begin to explore the nearby continent of Antagarich, each with their own agenda."

I really enjoyed the prequel, Might and Magic: The Mandate of Heaven, and the sequel, Day of the Destroyer
In short, this series cemented my love of 3DO and contributed heavily to my affinity for gaming as a whole.
What's a favorite game of yours that doesn't get enough respect?