A towering triangular Anvari monument rising over a frozen citadel, a vast moon behind it

PBUILD

✦

Worlds Remain

Write a world. Then walk on it.

In development · No release date yet

A hooded Wright looks out over a frozen city beneath jagged mountains

The Anvarin Spiral

You arrive late.
The tools remain.

Before the stars had names, the Anvari lived among them. They didn't conquer. They wrote. They read the laws of nature as a language and composed planets the way a poet composes verse.

Then, all at once, they stopped. What they left behind are living worlds, fallow stars, silent ruins, and the Forgeholds: worldships the size of mountains, still asleep in orbit. Now one of them is waking for you.

The Forge

Making a world is easy.
What it becomes is up to physics.

Aboard the Forgehold you set a handful of things: orbit, mass, composition, spin, tilt, air and water. Gravity, temperature, seasons, day length, and whether the world can hold its air all follow from real relationships. The Anvari called these laws the Deep Grammar. A world whose parameters balance is said to rhyme.

A Wright stands before a holographic planet suspended in the Forge Chamber

Try the Grammar

A simple sketch with real formulas. Temperature is before any warming from air. The game's model goes much deeper.

Surface gravity
Escape velocity
Equilibrium temp.
Year

The Four Peoples

Different origins.
A shared tomorrow.

Your people decide where in the Spiral you wake: the colour of your sun, the worlds that come naturally, the Warden who greets you. An affinity makes one kind of world easier to shape. It never locks anything away.

Waterfalls and ancient halls carved into a green mountain

Kethari

The Stone-Sworn · Roots run deep

Long-lived and patient, with oaths carved rather than spoken. They believe a world's bones matter more than its skin.

Star
Durn, an orange dwarf
Affinity
Crust and tectonics
Forgehold
Stonewake
Pale spires of an observatory city at dawn

Vaelin

The Star-Wardens · Children of light

Keepers of calendars tens of thousands of years long. They fear forgetting more than dying.

Star
Ithrael, a white F-type
Affinity
Atmosphere, light and sky
Forgehold
Vigil of Ithrael
A glowing reef city deep underwater

Mareth

The Tide-Singers · Songs of the deep

They keep their history as song, each generation adding a verse, and judge a world by whether it can hold water.

Star
Sael, a yellow sun
Affinity
Oceans, tides and life
Forgehold
Sael's Cradle
Black stone spires rising from a frozen plain

Hollowborn

The Ones Who Remain · Stillness endures

Wanderers since the Long Cold stilled their homeworld. They keep no temples. They keep lists.

Star
Veyl, a red dwarf
Affinity
None, and that is their gift
Forgehold
Last Lantern

Found, not told

The galaxy is full of
beautiful unfinished things.

A cloaked figure before a colossal broken ring of Anvari stone above waterfalls

Anvari Ruins

Pale stone and dark glass, always aligned to something in the sky. Their glyphs are really diagrams: orbits, spectra, pressure curves.

A vast ring-shaped Forgehold drifting above a planet under an aurora

Forgeholds

Worlds in waiting. Each carries a Warden, a fragment of Anvari mind, courteous and missing most of its memory.

Abandoned towers standing on a grey plain

The Hush

Work set down mid-stroke. Forges cold, doors open, verses half-written.

Ice cliffs and a frozen sea under a pale planet

The Long Cold

Not a monster. A frontier that advances, stilling worlds under blue ice.

Green mountains and waterfalls beneath a huge moon

Living Worlds

Finished long ago, now old and wild, their makers forgotten by the life that grew there.

Progress

A side project,
and just getting started.

Pbuild is in its earliest days. There is no playable build and no release date. It's being made for Windows PC, one foundation at a time, and this page will grow with it.

  1. Design

    Concept, lore, the four peoples and their stars, and a technical design that stays precise from a footstep to a light-year.

    Complete · September 2026

  2. The Forge

    Design a world and watch it form.

  3. Worlds You Can Walk

    Terrain, atmosphere and oceans. Descend from orbit to the ground.

  4. Living Worlds

    Climate, seasons, biomes, moons, and life.

  5. The Spiral's Story

    Ruins, Wardens' memories, and what the Long Cold wants.