System mechanic — added v227 · pays nothing, on purpose

The Mark

Building somewhere new counts once, forever — and everything you have already built takes ground away from you

Your save has remembered the exact position of every wall, floor, ramp and roof you have ever placed since version 17. It is rebuilt on every load. For two hundred and ten versions nothing ever read it. The Mark is the system that finally does — and it is the first thing in the game's history to care whether the world itself is different because you played, rather than tracking what you did or what you own.

What a mark is

Place a structure — any structure, from a single plank to a full building — on ground that had nothing on it: outside Penjamin City, outside the town, outside every named region the world put down for you, and somewhere you personally have never built before. That is a mark. It counts once, it counts forever, and there is no roster of them and no way to see the last one you made.

The catch: everything you've already built costs you

A mark does not just spend the patch of ground the structure stands on. It locks the eight patches around it too — a full 3×3 block, roughly a quarter of a kilometre across — so no two marks can ever sit near each other. This inverts the instinct of every builder: extending a fort, thickening a wall, adding another floor to something already standing is exactly the behaviour that can never earn another mark. A three-hundred-piece keep is worth precisely one mark. So is a single plank left alone in a field. To make another, you have to leave, carry materials somewhere you have never built before, and start again with nothing.

Tearing a structure down does not give the ground back — there is no build-and-demolish loop to farm marks with — and it does not take a mark away either, once earned. Ground you have used is used, permanently, in both directions.

What it deliberately doesn't do

No marker, no map, no list, no coordinates. The structure you placed with your own hands is the only thing standing there — nothing else is created. It never prints a location or keeps a page of your past marks. A list would be a map, and a map would mean never having to remember your own country.
No warning. The build ghost looks identical on ground that would count and ground that is already spent. No colour change, no "too close" message, no hint in the build menu. Knowing your own map by heart is the entire activity.
No denominator. It sets no target and no threshold, and it does not move any existing completion figure — the Apex Hunter total, the Bestiary, the Furniture Collection and every other trophy count in the game are untouched.
Pays absolutely nothing. No coin, items, experience, stat, skill, drop, reputation, unlock or discount, at any number of marks. Build costs, the grid, and the half-refund on removing a piece are exactly what they always were.

Old saves start at zero, not a debt

The first time this system runs on a character who has already been building for months, every patch they already occupy is quietly written off as spent and uncredited — a drifter with two hundred pieces already in the ground starts on nought, the same as a brand new character, simply because the system was not watching when those went in. Nothing already earned is taken away or renamed either; it fails closed rather than punishing a save that predates it.

Its counterpart: The Drowning

The very next version, v228, added the mirror image of this system: The Drowning, which counts land you permanently destroy rather than land you permanently claim. Together they're the only two things in the game that track whether the world itself has changed shape because of you — everything else the game counts is about your own body moving through the landscape or your own ledger of coin and items.

Version history

v227 — added. Ships with exactly the design described above: virgin-ground detection, the locked 3×3 patch grid, the old-save write-off, and no visible feedback beyond a single toast message the moment a mark is made. No changes recorded to it since.

Trivia

The patch grid runs on a 240-world-unit grain — small enough that a genuinely sprawling settlement can still only ever be worth one mark, no matter how large it eventually grows, because every neighbouring patch was locked out the moment the first piece went down.
Internally the counter that tracks how many marks you've made is named as though it could reset (a "run"), but nothing in the code ever lowers it — it is a lifetime total in practice, exactly like The Drowning's equivalent counter.