Algebra is doing maths with unknown values. Things like 3 x A = 6 Where A is “something we dont know yet” - so “3 times something is 6”
In this case I think perhaps we can see that A should be 2, but we can steadily learn techniques to solve more and more complicated puzzles like this.
If you get really good at these sorts of puzzles, you can learn to turn a lot of real world problem into this sort of puzzle, and often you can learn things about the problem by looking at the maths.
We can use this to calculate all sorts of stuff, and its a base of a lot of maths that comes later which is used for basically all science, engineering, accounting, programming etc.
Prediction: companies will rage against this, learn nothing, still not release the beloved old classics to places where people can play them.
Then after like three years, one company will do a browser port of a classic well, have wild success, then all the others will slop out versions of their own classics with poor quality control and wonder where all the money went.
Same as it ever was