Sunfallow

A 2D open-world sandbox · in development

Sunfallow

A Living World

A world that changes, whether you're watching or not.

Explore procedurally generated landscapes, build your own place in the world, and discover a land where nature and villagers follow their own rhythms.

Explore the WorldDevelopment progress

Early development · internal build 0.9.1 · no public release yet.

Gameplay capture, version 0.9.1: the village of Dunmere. HUD visible.

More than a backdrop

The world is not just scenery.

Trees regrow, wildlife responds to its surroundings and villagers carry out their daily work. This is what already exists in the internal build.

In the internal build

The land changes

Four seasons and local weather (rain, storms, snow, fog, sandstorms) change crops, light and walking speed.

In the internal build

Villages have routines

Villagers hold professions and follow daily jobs. Settlements keep stock, trade and grow.

In the internal build

Your actions matter

What you build, plant and fell is saved with the world; wildlife follows the forest and trees regrow.

Explore. Gather. Shape.

Systems that touch each other

Walk through forests and deserts, gather resources, grow food and build somewhere to call your own. These are the first five of nine systems.

  • Overview of the same village from a greater distance, with houses, a field, a market stall and several villagers.
    In the internal build

    Seeded worlds

    The same seed and generator always produce the same world. Only your changes are saved. Worlds reach up to 16,384 × 16,384 tiles.

  • A wooden hut seen from above with the roof faded out, showing furniture inside.
    In the internal build

    Building

    Walls, doors, floors and furniture. Closed rooms get a roof that fades when you step inside.

  • A village crossing in pixel art: a stone well, a campfire, a market stall and a notice board, villagers on a dirt path, a fenced wheat field at the lower right.
    In the internal build

    Farming

    Hoe, farmland, seeds and growth stages. Crops stop growing in winter and grow faster in spring and rain.

  • Wolves, a bear, deer, sheep, a fox, hens and other animals standing in a row on grass.
    In the internal build

    Wildlife

    Foxes hunt rabbits, herds leave cleared forests, some animals can be tamed and bred.

  • A town with red-roofed houses around a cobbled street, with a cart, lanterns and small gardens.
    In the internal build

    Village economy

    Settlements consume goods hourly, price them by scarcity, and caravans carry surplus along roads.

The world

25 biomes above ground, four zones below

From ocean and coast through forests and deserts to glaciers and ash wastes. Each biome has its own plants, animals and resources.

  • Green alpine meadow with a lone pine, bounded by the sea on the left.

    Alpine Meadows

    Mountain meadows with edelweiss, heather and pines.

    • Cold
    • Temperate
  • Large dark trees of an ancient forest at a coast.

    Ancient Forest

    Huge ancient trees, ferns, mossy boulders and glowcaps.

    • Temperate
    • Wet
  • A forest with orange maple trees and leaf litter next to a bay.

    Autumn Forest

    A maple forest with fallen logs and mushrooms.

    • Temperate
    • Wet
  • A light birch forest with a winding river and a sheep.

    Birch Forest

    A light forest of birches with flowers and mushrooms.

    • Temperate
  • Sand dunes with ripple patterns and a dirt track crossing the desert.

    Desert

    Sand dunes with cacti, dry shrubs and sandstone.

    • Hot
    • Dry
  • A green meadow with flowers and sunflowers, a fence and a wheat field at the top, a sandy shore at the right.

    Flower Meadows

    Meadows of poppies, cornflowers, lavender and sunflowers.

    • Temperate
  • A dense oak and pine forest with a wooden watchtower and mushrooms between the trees.

    Forest

    Dense oak forest with pine, ferns, mushrooms and berries.

    • Temperate
    • Wet
  • Pale blue ice with cracks, ice blocks and an amethyst geode; dark rock at the right edge.

    Glacier

    Cracked ice with ice blocks, frozen boulders and amethyst geodes.

    • Polar
    • Cold
  • Dense jungle with dark broad trees and palms next to a river.

    Jungle

    Thick jungle trees, palms, ferns and glowing glowcaps.

    • Hot
    • Wet
  • Grey cracked rock with boulders and a few pines.

    Mountains

    Bare rock with coal, copper, iron and gold, and a few pines.

    • Cold
    • Dry
  • A grassland with flowers, a fence and a small red-roofed hut at a bay.

    Plains

    Open grassland with oaks, bushes, wild carrots and flax.

    • Temperate
  • Yellow grassland with scattered acacia trees and a river on the right.

    Savanna

    Dry yellow grass with scattered acacias.

    • Warm
    • Dry
  • Snow-covered ground with snowy pines and a patch of thawed grass.

    Snow Forest

    Pines under snow, snowy bushes and frostbloom.

    • Polar
    • Cold
  • Dark green wetland with willows, reeds and mushrooms next to open water.

    Swamp

    Willows, reeds, brown mushrooms and clay by dark water.

    • Wet
    • Warm
  • Grey-green tundra with small rocks and a river; a wolf stands at the bottom right.

    Tundra

    Cold grassland with frozen boulders, snowy bushes and frostbloom.

    • Cold
    • Dry
  • Black basalt ground with dead trees and red crystals.

    Volcanic Lands

    Black basalt, coal, iron, ruby geodes and fire lilies.

    • Hot
    • Dry

Open the biome atlas

A world in progress

The foundations are here. The vision reaches further.

An internal development build already includes world generation, crafting, building, farming, village routines, weather, seasons, caves and a server for several players. Deeper ecosystems, more peoples and public servers remain goals, not released features.

How was this checked?

Present in version 0.9.1

  • Procedural worlds with 25 surface biomes and four underground zones
  • 154 items, 120 recipes, 151 world objects, 20 creature types, 17 villager roles
  • Seasons, weather, day and night, fishing, taming, caves, dungeons and bosses
  • 468 automated checks pass in the main test suite (no failures)

Not yet

  • No public release and no download
  • Nobody has played through it by hand with mouse and keyboard yet
  • The generated music and sounds have not been heard by a human
  • No public servers, no public accounts

From the journal

Latest from development

Honest insights instead of artificial hype. Only articles that really exist appear here.

  • The main menu: the SUNFALLOW wordmark with the subtitle A LIVING WORLD above a menu with Continue, New World, Load World, Join Server, Account, Character, Settings and Quit, in front of a village.

    · Announcement · Version 0.9.1

    From Averra to Sunfallow

    The game formerly developed as Averra is now called Sunfallow – A Living World. What changed, what stayed, and how old saves find their way over.

  • The world map window showing discovered settlements as round islands with names, and explanatory text below.

    · World · Version 0.9.1

    The world begins with a seed

    Why the same seed always gives the same world, what a save file really stores, and how old worlds stay safe when the generator improves.

  • A village crossing in pixel art: a stone well, a campfire, a market stall and a notice board, villagers on a dirt path, a fenced wheat field at the lower right.

    · Process · Version 0.9.1

    What version 0.9.1 really means

    A 0.9 version number sounds like “nearly done”. It is not. Here is what the number stands for, what was tested and what no one has done yet.

All articles

The road ahead

Direction, not promises

No dates and no percentage bars. Each entry carries its status.

Now

  • Play it through by hand Planned
  • Prepare a notarised release Planned
  • The official website In progress

Next

  • Controller support and UI size Planned
  • Close gaps in multiplayer Planned
  • Public regional servers Planned

Later

  • Treasure maps, temples and cave sound Planned
  • Five peoples Planned
  • Chunk files for very large worlds Planned

Exploring

  • Other platforms Exploring

Open the full roadmap

Real captures

Straight from the running game

All images are captures of version 0.9.1. Nothing here is concept art.

  • The village square at night: dark ground, a lit campfire, the field and houses in shadow.
    The same square at 22:00; day and night change the light.Gameplay captureCaptured in version 0.9.1, 30 October 2026
  • The village field and paths under snow in winter.
    Winter in Dunmere (season set by the screenshot tool).Gameplay captureStaged sceneCaptured in version 0.9.1, 30 October 2026
  • A dark cave with glowing blue crystals and green moss, lit only by a small area around the player.
    The Hollows, the first underground layer (staged by the screenshot tool).Gameplay captureStaged sceneCaptured in version 0.9.1, 30 October 2026
  • The village in rain: the picture is slightly darkened and tinted.
    Rain over Dunmere (spring, day 3).Gameplay captureStaged sceneCaptured in version 0.9.1, 30 October 2026
  • A merchant with pack mules walking along a dirt road next to a shore with palms.
    A caravan on the road between settlements.Gameplay captureCaptured in version 0.9.1, 30 October 2026
  • A stone hall with torches and a large guardian, the Stone Warden, and its name above it.
    The Stone Warden in the Dungeon Halls (staged scene).Gameplay captureStaged sceneCaptured in version 0.9.1, 30 October 2026

Open the gallery

Every world starts somewhere.

Sunfallow is far from finished. But it is growing, one system at a time. Follow along in the journal or with the RSS feed.

Discover SunfallowSubscribe via RSS