Those early Sierra games, the ones that used typed text to interact with the environment, were really inspirational. I was very disappointed when they replaced that CLI-like interface with mouse-driven icons. No doubt the icons were more user friendly and had none of the flaws of trying to enter the right text, but it still felt like something was lost.

Relatedly, I'm working on natural language understanding, which I believe is key to AGI. https://lxagi.com