Explorer's Campfire

Taken all the way down to base materials, one Explorer's Campfire is 4 crafting steps deep and needs 7 intermediates — Stump Stool ×3, Campfire ×1, Cast-iron Cookpot ×1 and 4 others — which resolve to 6 distinct raw materials totalling 94 units, plus 60 crystals.

That bill outweighs 13,458 of the 13,602 recipes tracked here and 1,423 of the 1,441 Armorer ones, and 1 recipe nests deeper.

Only 7 of those crystals go into the final step; the other 53 are burned by the intermediates, so the real crystal cost is 18 Water Shard, 16 Ice Shard, 10 Fire Shard and 3 other kinds.

The chain crosses four disciplines — Armorer to Lv 35, Alchemist to Lv 28, Blacksmith to Lv 26 and Carpenter to Lv 13 — so no single class can finish it unaided.

All 6 raw materials are gathered, and not one of their spots is timed, so nothing in the tree waits on the Eorzean clock.

Of the intermediates, Steel Ingot has the widest use: 125 recipes call for it, spanning seven of the eight crafting classes.