What's the oldest game you've played, and what was the experience like?

[drkohler]

Space invaders on the TT Space Invader in the local gambling hall, 1978.
I held the record (around 163'000 points) when the hall closed on Sunday morning 1am...

Lode Runner on the Apple II, 1983. Great game, amazing as it fit into the Apple's measly ram.