INDEPENDENT / OPEN DEVELOPMENT / ALPHA
Your ship. Four systems.
A new frontier.
Fly, mine, fight and trade in your browser—then land on Aster Vale and build a home on the surface. Help shape a universe still taking form.
Play in your browser. An account and verified email are required.
Early development: expect rough edges and a world still taking shape.
THE PLAYABLE ALPHA / YOUR FLIGHT PLAN
Explore space and Aster Vale.
Find your own rhythm between station sanctuary, the unknown beyond your radar and the surface of Aster Vale. These are activities in the current alpha—not a wishlist.
- Fly & FightFour systems, encounters and your own cockpit.
- Mine & TradeSix minerals, markets and private storage.
- Land & ExploreAster Vale, gathering and wildlife.
- Build & ProgressEquipment, missions and homesteads.
Explore all 10 alpha features
Playable now
Take the helm
Set a course, dock at stations and manage your ship’s power and boost. Keep an eye on fuel as you venture farther from home.
Beyond the next gate
Cross cinematic star gates between four connected systems. Discover stations and take courier missions that point you toward new routes.
You are not alone
Fight biological, crystalline and replicator encounters with fixed-hardpoint lasers. Seek the Umbra Warden in Glacial Veil and the Crown Broodmother in Umbra Crown.
Make a living in the belt
Mine five asteroid difficulty tiers for iron, copper, tin, aluminium, silicon and gold. Collect private drops and bring them to market. Watch your cargo space—and your surroundings.
Find your next opportunity
Trade with stations and other pilots, browse player listings and organize cargo in private per-station storage. Equipment condition matters.
Build a ship that fits
Shop for equipment, fit fixed lasers and shield modules, repair damage and manage your available ships. Your choices shape the next flight.
Give every flight a purpose
Earn XP and levels through combat and mission rewards. Take patrol, supply and delivery work, then chart a course toward the next challenge.
Fly on your terms
Arrange cockpit windows, customize controls, UI scale and visual quality, and read the space around you with finite radar. Enable native browser-streamed music for the system you are exploring.
A new frontier underfoot
Approach orbiting Aster Vale, land at Stillwater Reach, Flintwake Ridge or Veilmoss Basin, and explore on foot. Gather surface minerals, face wildlife and prepare for cold, toxic air and danger beyond the landing sanctuary.
Make a place on the frontier
Fund a house from your own landed ship’s cargo, enter a private interior and manage guest access. Place a workbench and craft learned recipes using your own supplies. Surface quests connect gathering and equipment unlocks.
Artwork from the Nebesa asset collection, not gameplay screenshots. Planetary gameplay begins with Aster Vale in T0 Nebesa. Alpha content and balance continue to evolve; all-item crafting, player/alliance stations and alliance planetary bases remain future goals.
OPEN COMMS / OUR COMMUNITY
Find your fellow pilots.
Share a first flight, report a rough edge or help shape the next chapter. Join the conversation behind the frontier.
THE BIGGER PICTURE / ONE CONNECTED UNIVERSE
Your next flight starts
with someone else’s haul.
Follow the connections behind your choices: what you bring home, what you put at risk, and who might need your next haul. Each story starts with the playable alpha; its “Where we are heading” note describes future plans.
A cargo hold full of possibility.
Read the belt, choose an asteroid difficulty, collect your private mineral drops and decide what is worth carrying home. Six distinct minerals, limited cargo and per-station storage make the journey part of the job—not just the sale at the end.
Miners and surface gatherers would supply makers; haulers and traders would connect regional needs. The materials you sell are intended to become the ships and equipment other pilots depend on.
Make the return journey matter.
Fit your fixed hardpoints and shield, check your fuel, and pick your encounters. The current alpha already connects equipment condition, repairs and supplies to your next expedition. On Aster Vale, character death exposes carried equipment and items through public drops; hospital recovery and ship impound are distinct parts of getting back on your feet.
Meaningful destruction, death, loss and wear should create demand for recovery, replacement and new production. Exact ship-loss, salvage and replacement rules are still future design—not a promise of universal permanent loss today.
Places worth coming back to.
Trade at stations, keep private local storage, or land on Aster Vale and develop your own homestead. Private interiors, owner-managed guests and learned workbench recipes give the surface a place in your pilot’s life beyond a brief landing.
Player-made ships, modules, ammunition and fuel would feed player-owned stations and alliance bases. Shared industry and logistics should connect homes, trade routes and distant systems, rather than becoming isolated menus.
THE MINER'S FIELD GUIDE / FIVE DIFFICULTIES, SIX MINERALS
Asteroid mining and minerals.
From your first iron haul to a hold of gold, every mining run starts with a choice. Not every asteroid yields every mineral. Fit your mining laser, watch your cargo space and find the rocks that suit your next expedition.
DIFFICULTY 1Ironwake Asteroid 
DIFFICULTY 2Cindervein Asteroid -
DIFFICULTY 3Gilded Rift Asteroid 
DIFFICULTY 4Crownstone Asteroid 
DIFFICULTY 5Prismatic Core Asteroid
Iron ore
DIFFICULTIES 1, 2, 4
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Copper ore
DIFFICULTIES 1, 3, 5
Tin ore
DIFFICULTIES 2, 4, 5
Aluminium ore
DIFFICULTIES 1, 3, 5
Silicon
DIFFICULTIES 2, 4, 5
Gold ore
DIFFICULTIES 3, 4, 5
Asteroid difficulty is separate from a star system's tier. System abundance favors eligible minerals, but a particular drop is not guaranteed. Your mining drops remain private to you until collected or expired; asteroid breaks grant resources, not combat XP or credits.
FOUR SYSTEMS / ONE CONNECTED JOURNEY
Explore Nebesa’s four star systems.
Start in Nebesa. Follow the gates into Ember Reach, Glacial Veil and Umbra Crown. Different resources, stations and increasingly dangerous encounters await.
T0 / FIRST LIGHTNebesa
Your first courses, contracts and cargo runs.
T1 / THE FRONTIEREmber Reach
Copper-rich space beyond the familiar.
T2 / THE UNKNOWNGlacial Veil
Tin-rich territory. The Warden waits here.
T3 / THE DEEPUmbra Crown
A distant frontier and the Broodmother’s domain.
Find the gate. Follow the frontier.
Pick up a gate-orientation courier contract at a home station for route guidance and gate coordinates. Prepare your cargo, fuel and equipment before leaving sanctuary.
System-inspired artwork, not a navigational map. Use in-game guidance to plan your journey.
YOUR FLIGHT BRIEFING
How to start
playing Nebesa.
Three small steps between you and the frontier. No download. Just a browser, a verified account and a course worth following.
- 01
Create your pilot
Register an account and confirm your email. Your next journey starts at the command deck.
Register a pilot ↗ - 02
Prepare your cockpit
Use a current browser with hardware acceleration. Choose your visual quality, UI scale and input preferences in Settings.
- 03
Make your first flight
Explore, mine and trade. Inspect the star map before venturing through gates into more dangerous systems.
What can I play right now?
The alpha includes four connected systems, server-authoritative flight and NPC combat, asteroid mining, equipment, progression and station/pilot trading. On T0 Aster Vale, land at three sites, explore on foot, gather rare surface minerals, encounter wildlife and develop a homestead with guest access and workbench crafting. Content and balance are still evolving.
Can I play without downloading anything?
Yes. Nebesa is an online browser game; an internet connection and verified account are required. Chromium with WebGL2 is recommended for planetary gameplay. The cockpit reports graphics capabilities and offers lower visual quality for less powerful devices.
Does supporting development give me more power?
No. Donations are voluntary and do not buy combat or progression advantages. Future paid in-game items are intended to be cosmetic only.
What happens if I disconnect during combat?
A hot combat logout leaves your ship in space for 30 seconds. Incoming attacks restart the timer, so closing the browser does not protect your ship.
What are the risks on a planet?
Landing sanctuaries offer a protected starting point. Outside them, wildlife, environmental hazards and other players can be dangerous. Character death creates public drops from carried and equipped character items; hospital recovery and landed-ship impound are separate from losing the ship’s cargo. Prepare your supplies before leaving sanctuary.
THE LONG VIEW / BEYOND THE ALPHA
A universe
built to grow.
One connected world, many reasons to belong. We are building toward an MMO space simulation where an asteroid haul, a replacement ship and a distant alliance outpost are chapters of the same player-made story.
Chart the road ahead ↗
From raw ore to launch day.
Player production is intended to connect minerals and trade to ships, equipment, ammunition and fuel. Makers, miners and haulers should all have a place in the same supply chain.
Loss with a purpose.
Meaningful danger and replacement should give preparation and recovery real weight. Future destruction and wear rules will be developed alongside a healthy economy—not added as arbitrary punishment.
Build beyond your own hull.
Player stations, alliance planetary bases and a wider network of systems would turn individual journeys into shared logistics, industry and places worth defending.
ON THE HORIZON — Universal crafting, future loss rules and alliance ownership are long-term goals, not current alpha features or fixed release promises.
INDEPENDENT DEVELOPMENT / VOLUNTARY SUPPORT
Support a universe. Never buy an advantage.
Help keep Nebesa growing. Donations are voluntary; any future paid in-game items will be cosmetic only. Playing, testing and sharing feedback matter too.
NO PAY-TO-WIN · NO COMBAT OR PROGRESSION ADVANTAGESDEVELOPMENT HIGHLIGHTS / BUILT AND TESTED
One creator. A growing universe.
From large-scale simulation tests to life on a planetary surface, these milestones are shaping Nebesa’s frontier.
A universe under pressure
Our development laboratory successfully ran a simulation with more than 130,000 NPCs—a major step toward the living universe we’re building.
Laboratory result—not 130,000 visible contacts, concurrent players or verified production capacity.
Finding the flow of flight
We refined player-ship and NPC motion to achieve smooth gameplay in our development tests, while keeping movement and combat server-authoritative.
Testing continues across more devices, network conditions and longer play sessions.
More than a sky to fly through
Aster Vale connects three shared landing sites to on-foot exploration, gathering, wildlife and persistent homesteads with private interiors, guest access and workbench crafting.
Available in the T0 planetary alpha, with further multiplayer and real-device testing ahead.
Progress worth protecting
Version-checked persistence, replay protection and transactional writes put correctness alongside speed. PostgreSQL laboratory measurements guide bounded batching and prepared-statement tuning.
Tested with automated checks and isolated PostgreSQL workloads. Long-running live measurements are the next step.
FLIGHT RECORDER / DEVELOPMENT ROADMAP
Nebesa development roadmap.
From four connected systems and a planetary frontier to smoother flight and measured server improvements. Explore the alpha’s milestones and the work still ahead.
A smoother, more resilient frontier
Our development laboratory ran a 130,000+ NPC simulation, alongside a dedicated pass for smooth player-ship and NPC motion. Measured PostgreSQL tuning strengthens the foundation beneath the flight experience.
The frontier reaches solid ground
Aster Vale brings three landing sites, on-foot exploration, rare gathering, environmental hazards and wildlife to T0 Nebesa. Homesteads, private interiors, guest permissions and workbench blueprints connect the surface to life in space.
More to discover in every haul
Aluminium, silicon and gold join the asteroid economy. Five mining difficulties gain original artwork, while distinct mineral sprites and a field guide help pilots read their haul.
Read the development history
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PROJECT ORIGIN The first transmission
A project file. An empty sky. The beginning of Nebesa’s independent development journey.
About this milestone
Our Visual Studio project-file creation timestamp records 12 September 2026, 16:42 UTC. Copying or restoring files can reset this metadata; this is not a verified first-commit date.
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DOCUMENTED CHECKPOINT Every encounter starts to matter
XP rewards, mission progression and finite-radar snapshots were recorded in the alpha’s automated verification. A foundation for flights with purpose.
About this milestone
The dated development audit records 257 passing tests and implemented reward behavior. Running-client and clean-database verification remained open at that checkpoint; this is not a release date.
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DOCUMENTED CHECKPOINT A place for every haul
Private per-station storage, condition-aware transfers, market buyback rules and equipment purchases expanded the pilot economy.
About this milestone
The dated inventory and market continuation documents implemented paths and regression coverage. It explicitly leaves running-client acceptance pending; this is not a release date.
- By 13 Oct 2026
ALPHA MILESTONE Four systems. A wider horizon.
Nebesa, Ember Reach, Glacial Veil and Umbra Crown are joined by reciprocal cinematic gates, with stations and system-specific encounters.
About this milestone
The October 13 deployment and acceptance records document the four-system atlas and reciprocal gates. This is a documented-by date, not the original feature completion date.
- October 2026
ALPHA MILESTONE A universe that pushes back
Fixed-hardpoint combat, distinct alien families, boss encounters and five asteroid mining tiers give each expedition its own risks and rewards.
About this milestone
October development records document combat, NPC and mining foundations with automated coverage. The displayed month is a documented period, not an exact release date.
- 12–13 Oct 2026
ALPHA MILESTONE Your ship. Your command deck.
Equipment, repair, power controls, progression and configurable cockpit windows bring more decisions into every flight.
About this milestone
The October 12 inventory/equipment continuation and October 13 cockpit acceptance records document these capabilities. The displayed range describes those checkpoints, not the original completion dates.
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DOCUMENTED CHECKPOINT A stronger foundation beneath the stars
Bounded simulation, snapshot delivery and persistence work received a dedicated reliability and frame-pacing pass.
About this milestone
The dated performance continuation records a successful build and 573 passing tests. It does not establish production capacity, flawless frame pacing or a deployment date.
- After 14 Oct 2026
ALPHA MILESTONE Reading the space between the stars
Gate-orientation couriers, floating combat feedback, original artwork and smoothly mixed encounter densities refine the journey.
About this milestone
Implemented after the October 14 performance baseline in the subsequent development sequence. The exact completion day remains unverified. Critical-hit styling does not imply a new critical-chance mechanic.
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DOCUMENTED CHECKPOINT More to discover in every haul
Aluminium, silicon and gold join the asteroid economy. Five mining difficulties gain original artwork, while distinct mineral sprites and a field guide help pilots read their haul.
About this milestone
The dated October 15 asset and mining record documents six minerals, approved tier pools, additive economy seeding and local artwork/browser verification. This checkpoint is not an exact production release timestamp.
- 15 Oct 2026 onward
ALPHA MILESTONE The frontier reaches solid ground
Aster Vale brings three landing sites, on-foot exploration, rare gathering, environmental hazards and wildlife to T0 Nebesa. Homesteads, private interiors, guest permissions and workbench blueprints connect the surface to life in space.
About this milestone
We completed the planetary development pass and updated the server. This entry does not identify a specific release timestamp; broader multiplayer, real-device and capacity testing continues.
- October 2026 development pass
DEVELOPMENT LAB A smoother, more resilient frontier
Our development laboratory ran a 130,000+ NPC simulation, alongside a dedicated pass for smooth player-ship and NPC motion. Measured PostgreSQL tuning strengthens the foundation beneath the flight experience.
About this milestone
Results from our development-laboratory testing, not a concurrent-player capacity benchmark or a guarantee across every device. Isolated PostgreSQL tests cover durable writes and preparation settings; long-running live analytics are next.
Future plans for Nebesa
Next steps and long-term vision · not a list of completed features
- 01 / REFINENEAR-TERM PRIORITIES
A smoother frontier, built to last
Build on the flight-smoothing and database-tuning passes with longer server analytics sessions. Verify reconnect recovery, concurrent play and real-device controls while refining planetary art, onboarding and balance.
Laboratory success is a foundation—not proof of live player capacity - 02 / CREATELONG-TERM CRAFTING VISION
Everything starts with a maker
The goal is for everything in the game to be player-craftable: ships, equipment, ammunition, fuel and more. Deeper blueprints and production would connect resource gathering to the things pilots fly and use.
Destruction and wear would drive loss and replacement; exact rules remain future design - 03 / ESTABLISHLONG-TERM OWNERSHIP VISION
Build a foothold among the stars
Player-owned and alliance-controlled stations: shared destinations for industry, logistics and life in space. Connect the player economy through places that pilots build, supply and defend.
Future stations—not the current NPC station ownership model - 04 / SETTLELONG-TERM ALLIANCE VISION
From homesteads to shared horizons
Alliance planetary bases would take collective building beyond today’s personal houses. Establish a surface presence together and connect it to the wider network of ships and stations.
Alliance bases are a future system, distinct from current guest access - 05 / CONNECTLONG-TERM WORLD EXPANSION
More stars on the other side
Expand the interconnected star-system network beyond today’s four systems. Create new routes, destinations and reasons to journey farther, growing planetary content as its foundations mature.
No fixed system count, release date or automatic planetary rollout - 06 / DISCOVERCONTINUING CONTENT DIRECTION
A universe with more to tell
Mining and mission expansions, richer combat and new NPC encounters will follow as development progresses. Broaden the choices and challenges within the places pilots already know as well as new frontiers.
Content grows alongside stability, balance and player feedback
No fixed release dates. Future systems, scope and priorities will be refined through development and player feedback.
A NOTE FROM THE CREATOR
Made by an independent creator.
I love making video games—the little moments where an idea becomes a place someone else can explore. Nebesa is my own project, made by one person, one piece at a time. It is still early, but the dream is a space universe that feels alive because of the people in it.
If you have taken a flight, tried something new, reported a rough edge or supported the project, thank you. Your time, patience and encouragement mean more than you might realize. I am grateful that you are here, and I hope we can make something special together.
Thank you for being part of Nebesa.
Your next flight starts here ↗