Strange Sounds

You are the lone operator of a remote deep-space listening facility. Using an array of steerable radio antennas, you scan the sky for artificial signals, decode their contents, and decide what to do with what you find. The tension comes from silence, isolation, and the growing suspicion that something is answering.

The Fantasy

Running an obscure scientific installation on the edge of the world. All interaction happens through in-world devices — computers, consoles, whiteboards, radios, paper logs. No floating HUD. Long periods of mundane monitoring punctuated by rare, high-impact discoveries. Every significant signal has structure, logic, and a possible interpretation. The facility is fragile. Mistakes in power, maintenance, or configuration have consequences.

The Loop

Plan and prepare — check scheduled satellite passes, allocate power budgets, queue automated scans. Operate and maintain — aim dishes, tune frequencies, adjust filters, repair equipment as weather and wear cause drift. Detect and analyze — receive raw noisy data, use spectrograms and demodulation tools to isolate candidates, solve decoding puzzles to reconstruct images, coordinates, language fragments, code. Decide and report — classify signals, file reports to competing factions, each choice affecting funding, tech unlocks, and narrative direction. Rest — sleep to advance time, read emails about the outside world reacting to your discoveries.

The Facility

Five environments. The control room — main consoles, analysis computers, whiteboards, coffee machine. The equipment hall — racks of receivers, servers, power converters. The workshop — tools, spare parts, crates with upgrades. Living quarters — bunk, small kitchen, radio, books. The exterior — an array of steerable dishes, generator shed, fuel tanks, weather station, and the sky.

3 to 7 steerable parabolic dishes plus an omnidirectional sky watcher. Each dish has mechanical limits, slew rates, and tracking error that matters. Poor pointing weakens signal SNR. High winds, ice, and mechanical wear introduce drift. Calibration is not optional.

Eleven Consoles

Observatory Planning — drag scan paths across an RA/Dec map, set dwell times, queue tasks, priority levels. Antenna Control — azimuth/elevation wheels, mode switches, manual peak-and-hold to maximise signal strength during initial lock. Receiver Tuning — choose band, bandwidth, gain, LO frequency; wider bandwidth increases noise floor but captures chirps; cryo-cooler state affects noise figure. Spectrum Analysis — FFT, windowing, averaging, noise reduction, markers, harmonics, notch filters, pattern library. Demodulation — AM/FM/SSB analog, PSK/FSK/QAM digital; constellation diagrams, eye diagrams, BER meters; align symbol timing and carrier phase by adjusting sliders. Data Forensics — hash checks, codebook puzzles, checksum reverse-engineering; time pressure — spend too long and the window closes. Transmission — compose and send responses; duty cycle limits; wrong power risks burning hardware or attracting attention. Triangulation — time-difference-of-arrival, phase alignment, GPS disciplining, error ellipses. Systems & Power — diesel, batteries, solar; load shedding; fuel deliveries depend on funding. Maintenance Workbench — cable tracing, board swapping, calibration with multimeter and oscilloscope. Archive — file reports, earn grants, peer review.

What You Find

50–100 hand-authored signal archetypes plus procedural variants. Natural — pulsars, fast radio bursts, Jupiter bursts, solar activity, lightning sprites, meteors. Human — satellites, aircraft, ground stations, radar sweeps, covert transmitters. Unknown — repeating sequences, encoded messages, narrow-band beacons, wideband structured data with prime intervals, Fibonacci patterns, and musical intervals. Each alien signal family reveals repeat motifs and language over time.

The narrative escalates through five acts. Routine science — training the player on natural and human signals. Anomalies — a repeating narrow-band source from beyond known satellites. Contact — clear evidence of non-human intelligence; global reaction through news feeds and directives. Dilemma — competing instructions from four factions. Resolution — ending determined by who received which data when.

The Factions

Each faction unlocks different hardware, software, and storylines. Upgrades arrive as physical shipments you unpack and install with screwdrivers and cabling.

Facility Tiers

Tier 1 — single dish, basic AM/FM, manual gain. Tier 2 — digital demodulators, AGC, improved cooling. Tier 3 — array steering, de-chirp, error-correcting decoders, auto-track. Tier 4 — triangulation, encryption toolkit, higher transmit power. Tier 5 — deep-space uplink, autonomous scheduling, narrative endgame tools.

The Aesthetic

Grounded near-future. Utilitarian. Cables, blinking LEDs, mechanical motion, cold outdoor vistas. CRT phosphor bloom on spectrograms. Monospaced fonts on terminals. Wind, relay clicks, servo motors, authentic RF demodulation audio mapped to sound. Sparse ambient score that grows during high-stakes decoding and recedes during routine monitoring. Subtly dissonant when anomalies appear.

The colour palette indoors is cold blues and greens from CRTs, warm tungsten lamps, muted surfaces. Outdoors: pale skies, harsh whites in snow, deep night blues. The visual language of real radio astronomy software — GBTIDL, CASA, SDR Console — translated into a game interface that respects the source material.

Engine: UE5.5 Platform: Steam (PC, Steam Deck) Monetisation: Premium single purchase. No microtransactions. Estimated length: 15–25 hours narrative; infinite sandbox. Status: Pre-production. Full GDD, sprint plans, signal pipeline architecture, 11 console designs, 4 faction narratives.