The title of the thread says it all: What's the first vidya gaem you can recall playing?
For me it'd have to be a top-down rougelike that came bundled with my first cellphone; a Nokia dumbphone I got around 2001. The graphics were incredibly primitive owing to its LCD display, but quite detailed for the technology involved. The sound was even moreso: The default beep every time you pressed a button, and a delightful MIDI sonata when you died.
Also, in true rougelike fashion, there were many creative (and oftentimes hilarious) ways to die. I mean, for starters, you could whittle down your health by trying to eat a flaming torch...
All in all, it was a really fun time. I can't say the concept was anything novel, but to bring a roguelike to a cellphone was a genuine technical feat back in the day. Whoever pulled it off, I genuinely hope they got a good raise.