A Hard Science Fiction Colony Simulator

TerminalBurn

Arrive in an alien star system. Build a civilization of billions. Survive the age of cosmic birth.

Join Wishlist Learn More
Scroll
Mission Profile

Build a world.
Then another.

Terminal Burn is a colony simulator where the physics are real and the stakes are cosmic. You arrive aboard an interstellar torchship decelerating into an alien solar system — a few thousand colonists, dwindling fuel, and a star system full of dead worlds waiting to be claimed.

Manage realistic Hohmann transfers and delta-V budgets. Engineer atmospheres on lifeless rocks. Build supply chains spanning billions of kilometers. Watch outposts grow into arcologies and orbital habitats holding hundreds of millions.

Inspired by Kerbal Space Program, Dwarf Fortress, and Stellaris — but driven by hard science and multi-generational scope.

01 / FOUNDATION
Realistic Orbital Mechanics
Every transfer uses Hohmann trajectories or constant-thrust burns. Delta-V is your currency. Miss your launch window and wait months for the next one.
02 / SCALE
Full-Scale Planetary Systems
Planets rendered at true scale with Google Maps fidelity. Place cities anywhere — no tile grid. Cinematic atmospheric scatter and volumetric clouds.
03 / DEPTH
Multi-Tier Production
Raw ore to semiconductors to reactor cores. No single planet has everything. Build interplanetary supply chains or watch your cities starve.
04 / AMBITION
Terraforming & Megastructures
Seed atmospheres, spin up O'Neill cylinders, anchor space elevators. Turn airless rock into gardens over decades of in-game time.
Scope

From a handful of colonists
to a civilization of billions

10K+
Starting colonists
1B+
End-game population
0.1c
Max ship velocity
Procedural star systems
Pillars

Six pillars of
hard science fiction

Orbital Mechanics
Real physics govern every ship. Plan Hohmann transfers, calculate ejection burns, watch fuel reserves dictate strategy. The tyranny of the rocket equation is your greatest opponent.
MVP
Colony Growth
Cities grow organically as districts. From pressurized domes on airless moons to arcologies housing tens of millions. Population demands drive your industrial priorities.
MVP
Supply Chains
Thirty-plus resources spanning raw extraction, chemical processing, and finished goods. No single world has everything. Commerce raiding is a legitimate military doctrine.
MVP
Terraforming
Atmosphere processors, seeded biospheres, controlled geological activity. Transform dead worlds over years. Visible planetary change rendered in real-time.
MVP
Rival Factions
Other colonial ventures compete for the same system. Diplomacy, brinksmanship, and war all carry civilizational risk — torchship engines contain the energy to sterilize continents.
MVP
Society & Governance
Government forms, population happiness, and society events shape your civilization's trajectory. Technology trees and expansion packs introduce interstellar neighbors.
Expansion
"Ten thousand years ago humankind sent its first torchship into the void. What began as tentative steps has become a wave of expansion — a dust mote in the hundred-thousand-light-year breadth of the Milky Way."

This is the age of cosmic birth, where humanity's greatest constraint is not technology but energy and relativity. Torchships represent the pinnacle of engineering achievement, their antimatter drives capable of reaching a tenth of light speed by consuming fuel loads equivalent to tens of millions of times the old Earth's nuclear arsenals.

Like medieval cathedrals, billions work on projects that they may never live to see the final product. The race to new systems has spawned radically different philosophies: ultra-light embryonic ark ships betting on speed, generation ships bringing self-sufficiency to the frontier, and everything between.

The worlds that we find are not like home. Hot Jupiters evaporating under intense stellar radiation. Supercritical steam worlds. Even the most promising candidates — worlds with liquid water and stable orbits — are often anoxic wastelands harboring biochemistries fundamentally incompatible with human life.

It will take generations to make a barren system into a garden. Welcome to the frontier.

Development Roadmap

From MVP to Civilization

Phase 01 — MVP
First Landfall
  • Realistic star system generation
  • Planetary scenes with volumetric atmosphere
  • Hohmann transfer fleet management
  • Colony growth & supply chains
  • Basic terraforming
  • Rival factions & strategic combat
Phase 02 — Expansion
Society
  • Government forms & ideology
  • Population happiness systems
  • Technology trees
  • Additional start conditions
  • Robust event generation
Phase 03 — Expansion
Stellar Neighbors
  • Nearby star systems
  • Interstellar trade networks
  • Covert operations & espionage
  • Vassal company systems
  • Exotic planetary types
Phase 04 — Expansion
End of History
  • Xenobiology & endemic ecosystems
  • Speculative technologies
  • Grey goo crisis events
  • Cosmic rarities & microsingularities
  • Warp drive research

Get Mission
Updates

Be first to know when Terminal Burn reaches Early Access.

No spam. Launch notifications only.