I have fond memories of learning Pike and Roxen as a kid by perusing the Stellar Crisis source code (released, 1993!) I think there's still some servers around today. https://strategywiki.org/wiki/Stellar_Crisis
Yeah, in that same year I was using "LPC" in an LPMUD called "Lost Souls". I think that's a precursor to Pike, but I'm not certain about the family tree.
I had learned Basic when I was young, and my coursework had pushed me to learn Pascal and C, but I really think it's LPC that pushed me towards a career in programming.