Loads of great experiences and tons of diversity. I’ve had lot of great experiences through video games and it’s never too late to start.
You could start with by looking through some video game threads and asking more specific question like “I’m new to video games, what are some games that you recommend that are not to hard to pick up” or something.
Recommend: Portal
I personally think you should give Portal a shot, it’s a 3D puzzle game that you can run on any computer and is one of the best games of all time, it’s also pretty funny on top of that.
If an article doesn’t fit my mental model of the world I’ll often skim through it and check out a related wikipedia