[kremlin]

I think a good text game is actually incredibly complex compared to the simplest types of graphical games.

[pavlov]

Yes, in the early 1980s text adventures by Infocom were high-end computing compared to every other type of game.

These adventure games were developed on a Unix minicomputer and executed in a custom VM that could fit both the engine and game onto 48-64k RAM available on the microcomputers that customers had.