Open World Mod. Possible?

The devs have said that it's not possible. The fact that it's one lot with stuff set up all around it and off lot and with shells and rabbit holes shouldn't come as a surprise to anyone. The sims team have already done "open world" in TS4 with ROM and Batuu but they don't call it that, because that's not really what it is. He's just managed to make a neighbourhood that works like the Magic Realm and Batuu but a more "normal" setting and without the weird but again more "normal" tasks/activities. He's just using terms like "open world" for the hype and he's very good at marketing his work and creating hype.

It's still impressive. Anyone who makes anything for this game without being paid by Maxis/EA is impressive, programming and developing isn't an easy thing. Especially something on this grand of a scale. He's basically created a game pack by the looks of it with everything that's included with it.