I have a legacy challenge save in TS4 but it's only gen 3 I think? In another save, on short lifespan, I'm on gen 7 or so (wanted to make it to gen 10 at least once). Overall I prefer rotational play and got kind of bored with both of those. I like breeding sims and I like the beginning where there's a challenge but after that it's not much fun.
In TS2 I made it about half way through... It was better there because it was part of my regular play but in TS4 sims gain skills even when you don't play them so challenge needs to be done in a separate save. I've pretty much given up playing legacy style. Eventually there might be a very long family line in my rotation but I'm not aiming for it on a purpose.
