Oddworld: Abe's Oddysee

Oddworld transformed empathy into gameplay mechanics. Abe, a Mudokon slave in a factory turning his race into food, had to escape while saving companions. GameSpeak — 'Hello!', 'Follow me!', 'Wait!' — let you communicate with other Mudokons to guide them. Saving or abandoning them all changed the ending. Pre-rendered graphics were dark and detailed. A game asking whether video games could have a social conscience.