☀️ Dyson Sphere Design Reference
Building a Dyson sphere in Dyson Sphere Program is the ultimate endgame goal — it's also the single biggest power generation and resource investment decision you'll make. This guide covers exact mechanics, numbers, and proven strategies to maximise your critical photon output while minimising wasted resources and frame hours.
⭐ Star Type Comparison
A star's luminosity directly determines the total energy output of any sphere built around it. The formula is straightforward: Sphere power output = Luminosity × Base power per cell. All values below assume a standard 1 AU radius sphere.
| Type | Base Luminosity | Sphere Output | Recommended |
|---|---|---|---|
| O | 2.0–2.5× | Highest | Best first sphere |
| B | 1.5–2.0× | Very High | Good second sphere |
| A | 1.3–1.6× | High | Default starter cluster |
| F | 1.0–1.3× | Medium | Your starting star |
| G | 0.9–1.0× | Medium | Like our sun |
| K | 0.7–0.9× | Low | Skip unless close |
| M | 0.3–0.6× | Lowest | Only for neutron/black hole |
Key insight: An O-type star with 2.5× luminosity produces 2.5× the power per cell compared to an F-type star. But O-stars are rarer — you'll typically find only 1–3 per 64-star cluster. Build your first large sphere around the brightest O-star within 20 light-years of your home system. Later spheres (O-blue giant, B, or neutron star) can be built at greater distances and fed via ILS.
Pro tip: Neutron stars and black holes have very low luminosity (0.3×–0.6×) but are excellent for producing critical photons via Graviton Lenses thanks to their special resource nodes. Don't skip them entirely — build a small sphere there specifically for antimatter fuel rod production.
Luminosity Formula Details
Every star has an internal luminosity value that translates to a percentage modifier:
- O-type: 1.0–2.5 (pink/red giants can hit 2.5)
- B-type: 0.8–1.6
- A-type: 0.6–1.2
- F-type: 0.5–1.0
- G-type: 0.5–1.0
- K-type: 0.3–0.8
- M-type: 0.1–0.6
The actual value varies per star seed. Always check the star details in the starmap before committing resources — you might find an F-star with 1.3× luminosity that rivals an average B-star, or a G-star with only 0.7× that isn't worth the frame cost.
🚀 Rocket vs Sail Economics
The rocket-vs-sail decision is the single biggest economic choice in Dyson sphere construction. Here's the exact breakdown:
| Aspect | Solar Sails | Rockets |
|---|---|---|
| Unlock | Blue Science | Purple Science |
| Cost | 1 × Prism + 2 × Graphene = 1 sail | 2 × Titanium Alloy + 2 × Carbon Nanotube + 2 × Dyson Frame Component = 1 rocket |
| Lifespan | ~2 hours (1,800–2,700 seconds, decays) | Permanent |
| Power Output | ~15–30 kW per sail | ~96–192 kW per rocket |
| Stacking | Cap at ~10,000 sails per orbital layer | Unlimited (frame+cell nodes) |
| Best Use | Early power bridge | Permanent sphere layers |
Strategy: Start with a swarm around your brightest star immediately after unlocking blue science. The 2-hour lifespan is enough to bridge to rocket production. Build permanent sphere layers with rockets once green science is flowing.
Sail Cost Breakdown
A single solar sail requires: - 1 × Prism = 2 × Glass (stone → silicon smelt) + 1 × Copper Ingot - 2 × Graphene = 6 × Graphite (coal) + 2 × Sulfuric Acid
That's roughly 7 raw ore per sail. At 30 sails per second (mk.3 assembler with proliferation), you burn through a copper patch fast. Always establish a dedicated sail production line with at least 3–4 mk.3 assemblers before launching the swarm.
Rocket Cost Breakdown
One Dyson rocket needs: - 2 × Titanium Alloy = 4 × Titanium Ingot + 4 × Steel - 2 × Carbon Nanotube = 4 × Graphite + 2 × Titanium Ingot (spiniform) - 2 × Dyson Frame Component = 4 × Processor (crystals + silicon) + 2 × Gear + 2 × Casing
Total: roughly 18 raw ores + 2 processors per rocket. This is why rocket production is gated behind purple science — the processing chain is deep. You need at least 15–20 mk.3 assemblers dedicated to rocket parts to sustain a reasonable build rate.
Critical decision: Should you proliferate rockets? Yes — always. Proliferator mk.III applied to rocket components gives +25% production speed and the rockets build 25% more structure points. That's a 56% effective material efficiency gain. Never skip it.
📡 Ray Receiver Mechanics
Ray receivers convert Dyson sphere power into either critical photons (for antimatter) or direct energy. Understanding their trigonometry is essential.
| Tip | Detail |
|---|---|
| Polar placement | Place receivers at high latitudes (60°+) for continuous line-of-sight |
| Graviton lenses | Apply lenses to double output. Worth it mid-game+ |
| Critical photon bottleneck | Scale receivers before you need antimatter fuel |
| Multiple layers | 3–5 concentric layers around O-star = 10×+ power |
Line-of-Sight Mechanics
A ray receiver only generates power when it has a direct line-of-sight to the sphere. Planets rotate, so receivers near the equator lose LOS for ~50% of each day. At high latitudes (60°+), the rotation parallax is minimal — receivers there maintain LOS for 90–100% of the day.
The ideal planet for ray receivers is: - Tidal locked to the star (always faces sphere) — best - Extremely low axial tilt (<5°) - Close orbit (shortens belt distance = reduces graviton lens travel) - High orbital inclination to see above the ecliptic
On a tidal-locked planet, place receivers in a grid on the sun-facing hemisphere. You can fit roughly 400–500 receivers on a single planet this way.
Output Formula
Each receiver's output = Sphere total power × Receiver efficiency × Graviton lens bonus ÷ Number of active receivers
Receiver efficiency depends on: 1. Distance from receiver to sphere (minimal if planet is close to star) 2. Angle of incidence (best when receiver points directly at sphere center) 3. Whether the sphere is currently in LOS
At 100% efficiency (rare), a single receiver outputs 12–15 MW without a lens, or 24–30 MW with a Graviton Lens. A full planet of ~400 receivers can pull 5–10 GW from a single sphere layer.
Graviton Lens Refresher
Each Graviton Lens costs: - 1 × Diamond (graphite → diamond via kimberlite or synthetic) - 1 × Strange Matter (particle collider — requires deuterium + critical photon)
Graviton Lenses are consumed over time (~5–10 minutes per lens, depending on receiver usage). One mk.III proliferated assembler making lenses is enough for 50–80 receivers. Always use them — the 2× output multiplier is the single best power-per-building upgrade available.
🔧 Sphere Layer Design — Structure vs Cell Points
Every Dyson sphere is built from two types of components:
Structure Points (Rockets)
- Form the frame (nodes, beams, and meridians)
- Each structure point costs 1 rocket to build
- Determines how many cell points you can fill
- Ratio: 1 structure point supports roughly 10 cell points in a well-designed frame
Cell Points (Sails)
- Fill the triangular panels between frame edges
- Each cell point consumes 1 solar sail to construct
- The more cell points, the higher the power output
- Frame density determines max cells — a sparse frame means fewer cells per frame rocket
Frame Layout Strategy
There are two dominant frame patterns:
1. Minimal Frame (Dense Nodes) - Build only the minimum "gear" pattern of 4–6 latitude rings - High node count (rockets expensive) but low total structure - Best when you're rocket-constrained (early game) - Cell fill ratio: ~6–8 cells per structure point
2. Full Frame (All Meridians + Rings) - Build the full geodesic grid with 15–30 latitude rings - Low node count relative to cells but high total rocket cost - Best when you're sail-constrained (late game, massive permanent sphere) - Cell fill ratio: ~10–12 cells per structure point
Recommendation: Start with a minimal frame (every 5th latitude ring, 12 meridians) for your first sphere. As your rocket production scales, convert to full-frame designs for later layers. Never delete an existing frame — just add more layers on top.
⚡ Power Generation Math
Let's put concrete numbers on a typical mid-game sphere around an O-star (2.0× luminosity):
Layer 1 (0.5 AU radius, minimal frame): - 2,000 structure points = 2,000 rockets - 16,000 cell points = 16,000 sails - Total output: ~2.5 GW
Layer 2 (0.8 AU radius, full frame): - 8,000 structure points = 8,000 rockets - 80,000 cell points = 80,000 sails - Total output: ~12 GW
Layer 3 (1.2 AU radius, full frame): - 12,000 structure points = 12,000 rockets - 130,000 cell points = 130,000 sails - Total output: ~18 GW
Combined output from all three layers: ~32.5 GW
To put that in perspective: - One Artificial Star burning antimatter fuel rods generates ~75 MW - You could power 433 Artificial Stars from this sphere - That's enough to run 20+ fully proliferated research labs at max speed, plus a 100-tower ILS network
Scaling to Endgame
An endgame sphere around a 2.5× luminosity O-star with 5 concentric layers (0.5–2.5 AU radii) filled with full frames:
- ~50,000 structure points → 50,000 rockets
- ~500,000 cell points → 500,000 sails
- Total output: 75–100 GW
This requires roughly 10 million raw ore total — a significant fraction of a 64-star cluster's resources. Plan accordingly and set up mining operations on 6–8 planets before starting construction.
🧩 Node & Frame Layout Details
When you open the Dyson Sphere editor, you're looking at a spherical grid. Here's how to design efficiently:
Latitude Rings
- Default: 5 rings per hemisphere
- Optimal: 10–15 rings per hemisphere for most frames
- Maximum: 30 rings (very dense frame, high rocket cost)
Meridians (Vertical Lines)
- Default: 12 meridians
- Optimal: 24–36 for full coverage
- Each intersection point is a node = 4–6 rockets to build
Node Placement Guidelines
- Always place nodes at exactly the same latitude on all meridians — this creates regular quadrilateral panels
- Avoid nodes between rings — they waste structure points without increasing cell capacity
- For polar regions (<10° latitude), reduce to 6 meridians — the panels are already tiny near the pole
- Use the "auto-connect" feature to snap frames between existing nodes instead of freehanding
Multi-Layer Stacking
You can build up to 10 concentric layers per star. Each layer has: - Independent radius (0.5 AU minimum, up to planetary orbit distance) - Independent frame design - Independent spin axis and orbital inclination
Best practice: Layer 1 at 0.5 AU (tight, cheap, fast), Layer 2 at 1.0 AU, Layer 3 at 1.5 AU, etc. Stagger the frame designs so nodes don't overlap — this prevents visual clutter and ensures clean belt paths for sails being launched from different orbital planes.
🏭 Resource Cost Summary
Building a single large sphere layer (~8,000 rockets + 80,000 sails):
| Resource | Approx. Amount | Primary Source |
|---|---|---|
| Iron Ore | 120,000 | Smelt → steel → titanium alloy |
| Copper Ore | 60,000 | Smelt → copper ingot → prism, processors |
| Silicon Ore | 80,000 | Smelt → silicon → processors, glass |
| Titanium Ore | 40,000 | Smelt → titanium ingot → alloy, nanotubes |
| Coal / Graphite | 100,000 | Graphite → nanotubes, diamond, graphene |
| Stone | 50,000 | Smelt → silicon from stone (alternative) |
| Sulfuric Acid | 20,000 | Ocean pump or chemical plant |
| Fractal Silicon | 5,000 | Rare crystal nodes → processor |
| Spiniform Stalagmite | 8,000 | Rare organic crystal → nanotubes |
Total raw ore equivalent: ~500,000 units per full layer. Multiply by 5 layers = ~2.5 million raw ore for a complete endgame sphere. This is why you need at least 3 mining planets with full logistics coverage before starting.
🔄 Endgame Optimisation Checklist
- Choose the right star — O-type or high-luminosity B-type within 20 LY
- Find the right planet — Tidal-locked, low tilt, close orbit for receiver placement
- Start with a swarm — Blue science → immediate sail launchers (6–10) around brightest star
- Build minimal first layer — 0.5 AU, 12 meridians, every 6th ring cheap frame
- Scale rocket production — 20+ mk.3 assemblers, proliferated, fed by 3+ titanium and coal planets
- Add receiver planets — 300–400 receivers on the sun-facing side of the closest planet
- Apply graviton lenses — Once critical photon demand exceeds raw output, lens every receiver
- Stack layers outward — Add concentric layers at 0.5 AU intervals up to the planet's orbit
- Convert to critical photons — Use ray receivers set to photon mode; ship to a dedicated antimatter processing planet
- Celebrate — You've built a megastructure. Your factory is now effectively power-unlimited