Early Access · v0.3.0 beta · Windows

Astra

Explore · Build · Dream

A world of blocks shaped by its climate. Found a colony, wake the flowers, talk with the villagers — then climb to the Heaven.

Download for Windows ▶ Watch the trailers

Drag the cube · click it to break it

  • 5 × 5 kmone bounded world
  • 6biomes from the climate
  • 11story chapters
  • 25creatures to meet

A whole world in your hands

Everything you see here is drawn by the game itself.

🌍

A climate, not a map

5 × 5 km of land: plains, ancient forests, desert canyons, tundra, jungles and misty swamps, placed by temperature and rain. Caves, rivers, shipwrecks, treasure.

📖

A story to the Heaven

Story mode, in Adventure: eleven chapters from your first night to the Demon Lord's fortress, and up to God's golden temple.

🏘️

Colonies

Found a town. Citizens arrive, take a trade, and the builder raises every hut block by block.

🌸

Flower magic

Wake the flowers: they gather mana by sunlight, moonlight and fire, grow your crops, heal you and drive the shades away.

🗣️

Talk to the villagers

Hold a key and speak. Villagers and angels understand you and answer out loud — on your own PC, no account.

🧩

Mods and a full wiki

New items, recipes and texts from simple text files. Every block, item, recipe and creature in the wiki.

God's golden temple in the Heaven
Story mode

The fading light

Astra was born from the light of the Heaven. Deep below, in the Abyss, the Demon Lord grew jealous of that light — and began to steal it.

  1. Survive your first night in the plains.
  2. Forge iron and dig for diamonds.
  3. Open the golden gate to the Heaven.
  4. Descend into the Abyss and face the Demon Lord.
  5. Bring back the light — and find who has been waiting for you.

The story has its own saves and is played in Adventure. Free-play worlds keep Survival and Creative.

A colony beside a flowering meadow
Colonies

Watch your town rise

Use a town hall charter and your colony begins. Order huts — residences, farms, a mine, a kitchen, a guard tower — and the builder raises them from the colony's storage, up to level 3.

  • Citizens with trades: farmers, foresters, miners, fishers, cooks, guards
  • Food, beds and safety make them happy — and faster
  • Raids at night, a storage chest and a list of requests
A garden of glowing flowers at night
Flower magic

Wake the flowers

A glimmer seed turns a flower into magic and a cauldron into a mana pool. Sunpetals drink the day, Moonpetals the night, Emberblooms the fire; wisps of light carry their mana home.

  • Verdancia grows your crops, Lifelily heals you, Thornward fights for you
  • Infuse iron into glimmersteel, diamonds into mana diamonds

Books and tools for every path

Two guide books explain it all in the game, and each craft has its own instruments.

📗

The Florarium

The guide to flower magic: each flower, each pool and each infusion, with its recipes.

📘

The Colony handbook

From the charter to the level 3 huts: trades, storage, food and how to hold a raid.

🪄

Instruments of magic

The floral wand reads flowers and pools and shows their reach, the mana tablet carries 10,000 mana, and that mana mends glimmersteel tools.

📐

Instruments of the colony

The builder's planner orders huts from anywhere, the colony clipboard shows the requests, the survey staff reveals the colony's border and huts.

Meet the creatures

Real models from the game, with their own animations. Drag to turn them.

Boar

passive

The Astra launcher: news, versions and the Play button
The launcher

One small program does the rest

Enter your key once. The launcher installs Astra, checks every file and brings each new version by itself.

  • Activated once, then it works offline
  • The download is checked before it is installed
  • News, versions, profiles and your worlds in one place

Trailers

The world of Astra
Colonies & flower magic

What's new

Version 0.3.0 beta, the Early Access release.

Picture

A new look

One tone curve and one colour grade for the whole game: sun, torches, night and water now belong to the same world.

Story

From the plains to the Heaven

The story has its own button and its own saves, played in Adventure from the first night to the ending.

Worlds

Richer biomes, truer physics

The land takes shape from temperature and rain, and creatures fall and tumble with real physics.

Play your way

👥

Multiplayer

Open your world to your network in one click, or run the dedicated server. Voice chat with friends nearby.

🥽

Virtual reality

Any OpenXR headset: walk or teleport, real sword swings, a bow you draw with your hands.

🎬

Cinematic studio

A free camera, keyframes and live preview: film your builds and export them as videos.

Download Astra

Early Access · version 0.3.0 beta · Windows 10/11 64-bit. Your worlds keep working in every later version.

Download the launcher

AstraLauncher.exe (about 2 MB). It asks for your key, then installs and updates the game for you (1.9 GB, voices included).

1Download and start the launcher
2Enter your Early Access key
ASTRA-XXXXX-XXXXX-XXXXX
3Install, then Play — updates come by themselves
MinimumWindows 10 64-bit · Vulkan 1.3 GPU (GTX 900, RX 400, Intel UHD 600) · 8 GB RAM
RecommendedWindows 11 · 4 GB video memory · 16 GB RAM

Questions

How do I get a key?

Early Access keys are handed out by the team (events, testers, streamers). One key works on up to two PCs; enter it once in the launcher and it stays activated, even offline.

What does activating a key send?

Your key and a one-way code made from your PC's Windows id: no name, no address, no account. The site uses no cookies and no trackers.

Where are my worlds?

In Documents\My Games\Astra\saves: updates never touch them.

Does talking to villagers send my voice online?

No. Listening and answering run on your own PC; nothing leaves it.

Can I make mods?

Yes: new items, recipes and translations from simple text files. See the modding guide.