OrbitalForge / missions

Missions & challenges

Each mission is a set of physics-anchored targets your design has to hit. Completing all targets applies a reward multiplier to your score. Browse by theme — every category maps to a real piece of the multi-planetary roadmap.

Fundamentals3 missions

On-ramps. Prove the pipeline closes.

Fundamentals

First Watt in Orbit

Generate your first kilowatt-class power budget in a stable LEO. A gentle on-ramp: any orbit between 400–700 km with at least 5 kW of delivered average power.

difficulty 1×1.0 reward
  • Altitude ≥ 400 km
  • Altitude ≤ 700 km
  • Avg power ≥ 5 kW
Fundamentals

Hello, LEO

Welcome flight. Put anything in a stable sun-synchronous orbit around 500 km and prove the pipeline works.

difficulty 1×1.0 reward
  • Altitude ≥ 450 km
  • Altitude ≤ 600 km
  • Inclination ≥ 95° (sun-sync band)
  • Inclination ≤ 100°
Fundamentals

Polar watch

Near-polar orbit for full-globe coverage. 800–1200 km, inclination 85–95°.

★★★difficulty 3×1.3 reward
  • Altitude ≥ 800 km
  • Altitude ≤ 1200 km
  • Inclination ≥ 85°
  • Inclination ≤ 95°
  • Avg power ≥ 30 kW
Power & Energy9 missions

Specific power, SBSP precursors, gigawatt pathfinders.

Power & Energy

100 kW milestone

Hit the FCC filing's per-satellite reference: average compute power ≥ 80 kW sustained across eclipses.

★★★difficulty 3×1.3 reward
  • Design power ≥ 100 kW
  • Avg delivered power ≥ 80 kW
  • Eclipse fraction ≤ 25%
Power & Energy

Power density pioneer

Break 280 W/kg specific power (NASA SBSP advanced-array target is 300 W/kg) while delivering real avg power.

★★★difficulty 3×1.3 reward
  • Specific power ≥ 280 W/kg
  • Avg power ≥ 40 kW
Power & Energy

Sun-Synchronous Power Champion

Best-in-class avg delivered power in the 500 km sun-sync slot where most Earth-observation constellations live. Reach 70 kW average without leaving the band.

★★★★difficulty 4×1.5 reward
  • Altitude ≥ 470 km
  • Altitude ≤ 560 km
  • Inclination ≥ 96.5° (sun-sync)
  • Inclination ≤ 98.5°
  • Avg delivered power ≥ 70 kW
  • Eclipse fraction ≤ 40 %
Power & Energy

TERAFAB Node

TERAFAB-class building block. Sustain ≥80 kW average delivered power inside the SBSP-friendly 800–1200 km sun-sync band where lighting is most predictable.

★★★★difficulty 4×1.6 reward
  • Altitude ≥ 800 km
  • Altitude ≤ 1200 km
  • Inclination ≥ 96° (sun-sync band)
  • Inclination ≤ 100°
  • Avg delivered power ≥ 80 kW
  • Design power ≥ 100 kW (TERAFAB node)
Power & Energy

Triple threat

High power, high density, in-envelope. Do all three at once.

★★★★difficulty 4×1.5 reward
  • Specific power ≥ 250 W/kg
  • Avg power ≥ 70 kW
  • Altitude ≥ 500 km
  • Altitude ≤ 2000 km
Power & Energy

Frontier

Master challenge. Specific power at the NASA SBSP target, near-peak average power, altitude inside the main shell. Very few designs satisfy all four at once.

★★★★★difficulty 5×2.0 reward
  • Specific power ≥ 300 W/kg (SBSP target)
  • Avg power ≥ 90 kW
  • Altitude ≥ 500 km
  • Altitude ≤ 1500 km
Power & Energy

Gigawatt Pathfinder

First step toward gigawatt-class space industry. Hold ≥ 200 kW average delivered power per spacecraft with the SBSP-class specific-power target — the configuration TERAFAB-scale operators will want to multiply by thousands.

★★★★★difficulty 5×2.2 reward
  • Design power ≥ 250 kW
  • Avg delivered power ≥ 200 kW
  • Specific power ≥ 250 W/kg
  • Altitude ≥ 600 km
Power & Energy

Power Beaming Demo

Push the array close to the SBSP 300 W/kg target while running real compute. The demo case for an SBSP precursor: high specific power and high efficiency in the same bird.

★★★★★difficulty 5×1.9 reward
  • Specific power ≥ 280 W/kg
  • Cell efficiency ≥ 30 %
  • Avg delivered power ≥ 60 kW
  • Radiator emissivity ε ≥ 0.85
  • Altitude ≥ 500 km
  • Altitude ≤ 2000 km
Power & Energy

SBSP Precursor

Direct precursor to space-based solar power: meet the NASA SBSP 2024 advanced-array target of 300 W/kg with high cell efficiency, in the canonical SBSP altitude shell.

★★★★★difficulty 5×2.0 reward
  • Specific power ≥ 300 W/kg (SBSP target)
  • Cell efficiency ≥ 32 %
  • Array ≥ 400 m²
  • Altitude ≥ 800 km
  • Altitude ≤ 1500 km
Compute & AI4 missions

Orbital data centers and edge AI inference.

Compute & AI

AI Inference at the Edge

Edge-inference satellite with a tight compute-mass budget: ≤ 4 kg/kW of compute, ≥ 50 kW design, holding a working orbit in the FCC AI-sat shell.

★★★difficulty 3×1.4 reward
  • Design compute ≥ 50 kW
  • Compute mass ≤ 4 kg/kW
  • Altitude ≥ 500 km
  • Altitude ≤ 2000 km
  • Avg power ≥ 35 kW
Compute & AI

Orbital AI Cluster

Single Starship launch carrying a swarm of high-kW AI sats. Keep each bus mass low enough that 4× of them fit under one 150 t reusable LEO payload, and hold ≥70 kW design power per bus.

★★★★difficulty 4×1.6 reward
  • Design power ≥ 70 kW per bus
  • Design power ≤ 150 kW per bus
  • Compute density ≤ 5 kg/kW
  • Array ≤ 600 m² (fits 4× per Starship bay)
  • Altitude ≥ 500 km
  • Altitude ≤ 1500 km
  • Avg power ≥ 50 kW
Compute & AI

Orbital Data-Center MVP

Minimum viable orbital data center. ≥ 150 kW design compute, high uptime (eclipse ≤ 25 %), and an array credible enough to carry it (≥ 200 W/kg specific power).

★★★★difficulty 4×1.7 reward
  • Design compute ≥ 150 kW
  • Eclipse fraction ≤ 25 %
  • Avg delivered power ≥ 110 kW
  • Specific power ≥ 200 W/kg
Compute & AI

Continuous Operations Champion

Minimum eclipse, maximum uptime. Operate at very low umbral fraction (≤15 %) so the AI compute load almost never throttles — the configuration TERAFAB-class operators will pay for first.

★★★★★difficulty 5×1.8 reward
  • Eclipse fraction ≤ 15 %
  • Avg power ≥ 75 kW
  • Design power ≥ 90 kW
  • Altitude ≥ 600 km
  • Altitude ≤ 2000 km
Communications2 missions

Optical downlinks and deep-space relays.

Communications

Ground Laser Downlink

Practical orbital-compute downlink: ≥ 100 W transmit, ≥ 0.2 m aperture, low-eclipse SSO so the optics are pointed at sunlit ground stations most of the day.

★★★difficulty 3×1.4 reward
  • Laser comms ≥ 100 W
  • Optical aperture ≥ 0.2 m
  • Inclination ≥ 96° (sun-sync)
  • Inclination ≤ 100°
  • Eclipse fraction ≤ 30 %
  • Avg power ≥ 30 kW
Communications

Deep-Space Relay

Optical relay for deep-space links. Generous laser aperture, ≥ 500 W transmit power, near-polar coverage, and ≥ 60 kW of average delivered power to keep the link alive through eclipses.

★★★★★difficulty 5×1.9 reward
  • Optical aperture ≥ 0.5 m
  • Laser comms ≥ 500 W
  • Inclination ≥ 85° (near-polar)
  • Avg power ≥ 60 kW
  • Altitude ≥ 800 km
Multi-Planetary3 missions

Mars cyclers, lunar relays, cislunar comms.

Multi-Planetary

Lunar Relay Precursor

Pathfinder for an Earth-Moon relay layer. Higher altitude than the AI-sat shell so the geometry to the lunar surface is less Earth-blocked, with optics sized for cislunar distances.

★★★★difficulty 4×1.7 reward
  • Altitude ≥ 1500 km
  • Optical aperture ≥ 0.4 m
  • Laser comms ≥ 300 W
  • Avg power ≥ 45 kW
Multi-Planetary

Mars Cycler Uplink

Earth-side terminal for a Mars-cycler comms hop. Big optics, lots of power margin, sun-pointing-friendly orbit. Built for the era when Starship is moving cargo between planets every synodic period.

★★★★★difficulty 5×2.0 reward
  • Optical aperture ≥ 0.6 m
  • Laser comms ≥ 800 W
  • Onboard compute ≥ 80 kW (link processing)
  • Altitude ≥ 1200 km
  • Avg power ≥ 60 kW
Multi-Planetary

Mars Relay Pathfinder

Build the relay tier of an interplanetary comms network. Near-polar orbit for full Earth-side coverage and a laser comms package big enough to reach a Mars cycler.

★★★★★difficulty 5×1.8 reward
  • Inclination ≥ 88° (near-polar)
  • Inclination ≤ 100°
  • Altitude ≥ 1000 km
  • Laser comms ≥ 200 W
  • Optical aperture ≥ 0.3 m
  • Avg power ≥ 50 kW (relay duty cycle)
Efficiency & Longevity3 missions

Δv budgets and decade-class operating life.

Efficiency & Longevity

Decade on Orbit

Operate at altitude where drag is low enough that you could credibly stay aloft for 10 years on the modelled station-keeping budget. ≥ 1500 km altitude and Δv (24 h) ≤ 0.06 m/s.

★★★★difficulty 4×1.6 reward
  • Altitude ≥ 1500 km
  • Δv (24 h) ≤ 0.06 m/s
  • Avg power ≥ 50 kW
Efficiency & Longevity

Drag-free decade

Up high where the air is thin — 1200 km+ so your design can plausibly survive a decade without reboost.

★★★★difficulty 4×1.5 reward
  • Altitude ≥ 1200 km
  • Avg power ≥ 50 kW
Efficiency & Longevity

Minimum Δv Lifetime

Station-keeping efficiency challenge. Hold a working orbit (altitude ≥ 700 km, eclipse fraction ≤ 35 %) on a 24-hour Δv budget below 0.05 m/s — the cheapest perigee in the catalogue.

★★★★difficulty 4×1.6 reward
  • Δv (24 h) ≤ 0.05 m/s
  • Altitude ≥ 700 km
  • Eclipse fraction ≤ 35 %
  • Avg power ≥ 40 kW
Constellations & Scale3 missions

Starship payload throughput and megaconstellations.

Constellations & Scale

Starship single-launch

Fit your whole bird in one Starship payload bay — dry mass under 50 t, per the SpaceX FCC filing scaling reference.

★★difficulty 2×1.2 reward
  • Valid simulation (reached orbit)
  • Array ≤ 1000 m²
  • Compute ≤ 500 kW
Constellations & Scale

Megaconstellation candidate

Design a 60 kW bus you could launch a million of — within the 500–2000 km FCC shell.

★★★★difficulty 4×1.5 reward
  • Design power ≥ 60 kW
  • Design power ≤ 120 kW
  • Avg power ≥ 40 kW
  • Altitude ≥ 500 km
  • Altitude ≤ 2000 km
Constellations & Scale

Starship Bay Stuffer

Maximize bus throughput per Starship launch. Compact array (≤ 400 m²), capable compute (≥ 60 kW design), and a working AI-sat orbit — fit ≥ 6 of these per 150 t LEO bay.

★★★★difficulty 4×1.6 reward
  • Array ≤ 400 m² (≥ 6 per Starship bay)
  • Design compute ≥ 60 kW
  • Compute density ≤ 5 kg/kW
  • Altitude ≥ 500 km
  • Altitude ≤ 2000 km
  • Avg power ≥ 40 kW