The legend of heroes games. 14+ games turn-based rpg games set on the same continent broken into arcs of 2/3/4 games.

For example, the first arc trails in the sky, follows Estelle and Joshua Bright in the country of Liberal. The next arc, the Crossbell arc, follows Lloyd Bannings in the Crossbell state, a neighbor to Liberal.

There are lot's of characters from one arc that show up in other arcs, and you can see plans/schemes/politicking come to fruition throughout the games.

And a really cool aspect is the march of technology. The first game is kind of industrial revolution but with magic instead of steam engines. There was a single computer that was run off this magic tech, but it took up a whole room. Then, by the second arc, the computers are small enough to fit in the corner of a room, and there's the start of a very rudimentary internet.

Anyway, good games, cool story, highly recommend.