Wonder of the World

The endgame, and the only building with a hundred levels. The first alliance to finish one wins the world - and so do the Natars, who are building theirs on a timer from the day construction plans appear. It is not built in a village you settle: the Natars hold fourteen Wonder villages from the start, and one has to be taken off them first.

• Building at all needs one active construction plan held by the Wonder village's owner. Past level 49 it needs a second active plan, held by a different player in the same alliance - two plans on one player count as one, and an inactive plan counts for nothing.
• A plan is taken from a Natar plan village: a Treasury at level 10 in the attacking village, the target's own Treasury destroyed, and the hero in the attack and surviving it. Only a hero carries a plan home.
• The village itself changes rules. No Gold works there - no NPC trade, no instant finish - there is no Treasury, it makes no culture points, and build times are halved.
• It cannot be conquered once the Wonder reaches level 1, and it cannot be destroyed. It also cannot be the capital, so it never has a Stonemason protecting it.
• Catapults can always aim at it from Rally Point level 1, and it ignores both the Architect and Confusion artefacts - the two things that protect everything else. A unique Confusion leaves the Wonder as the only target.
• Supply is unlimited: pushing protection does not apply to a Wonder village at all, trade routes included, so the whole alliance can pour resources in.
• Troops stationed there eat half the crop once construction plans appear, which is what makes parking an alliance's defence on it affordable.
• It is exempt from the free-crop rule, so a level can always be started however tight the village's crop is.

The real race. Four fifths of the cost sits above level 49 - the half that needs two plans from two players. An alliance that takes one plan and starts early is not halfway; it has paid a fifth.

Natars. They start the moment plans appear, and at level 75 they call every force home to defend their own Wonder and stop attacking players'. Beating the clock is the only defence against them.

Build times here. The table gives the ordinary figure for the Main Building level chosen above. A Wonder village halves it, and the world's speed divides it again - so a hundred levels is about 51 days of building at 1x with a level 1 Main Building, and a good deal less in practice.