A few that seem under represented here:

Oregon Trail

Sim City 2000

Earthworm Jim

One of the most popular artists in the world was all over the news last week because their art was destroyed by capitalists. What point where you trying to make?

Here is a great 30 min explainer presentation on the activitypub network in general: https://conf.tube/w/d8c8ed69-79f0-4987-bafe-84c01f38f966

It covers a lot of the philosophical and design differences that a lot of us are very passionate about. Welcome.