Ruins

I've only used this world for exploration while waiting for mods to update
after they've been broken due to an update.

No mods needed.

I would however recommend that you install all the mods required on my Steampunk map.

https://web.archive.org/web/2020/http://www.minecraftworldmap.com/worlds/ZrVsP

They are worth the trouble of learning how to install them all. Trust me.