Reality Pass Specification

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RealityPass

There are no shortcuts past physics.

Overview

RealityPass is an open source, AI assisted, physics accurate space engineering simulation platform that enables individuals and teams to design, validate, and experience space systems before they are constructed in the real world.

Unlike traditional simulation games, RealityPass does not simplify the laws of physics to improve gameplay. Every spacecraft, habitat, propulsion system, orbital maneuver, and mission is evaluated using deterministic scientific models designed to reproduce realistic outcomes. Successful designs demonstrate engineering excellence, while flawed designs fail for the same reasons they would fail in reality.

RealityPass combines scientific simulation, artificial intelligence, collaborative engineering, and immersive virtual reality into a single platform where users can safely experiment, iterate, and learn from both success and failure.

Major Features

Deterministic Physics Engine

Simulates:

Orbital mechanics
N body gravity
Lagrange points
Atmospheric drag
Orbital decay
Reentry dynamics
Delta V calculations
Docking mechanics
Rendezvous planning
Spacecraft attitude control
Momentum exchange
Rotation dynamics
Center of mass calculations
Structural dynamics
Material stress
Material fatigue
Fracture mechanics
Resonance
Thermal expansion
Thermal contraction
Radiative heat transfer
Solar heating
Cryogenic systems
Propellant boil off
Vacuum effects
Pressure systems
Fluid movement in microgravity
Fuel slosh
Electrical systems
Power distribution
Battery degradation
Solar array performance
Radiation exposure
Cosmic rays
Solar storms
Micrometeoroid impacts
Orbital debris collisions

Artificial Intelligence

Engineering Assistant

Reviews every design
Detects engineering conflicts
Explains failures
Suggests alternatives
Calculates engineering tradeoffs
Identifies unnecessary mass
Recommends structural improvements
Optimizes power systems
Evaluates propulsion efficiency
Explains orbital decisions
Estimates mission risk

Intelligent Scenario Generator

Creates realistic missions including:

Satellite deployment
Lunar missions
Mars missions
Space stations
Orbital refueling
Cargo transport
Rescue missions
Deep space exploration
Planetary infrastructure
Scientific research

Adaptive Learning

AI continuously improves from:

Community designs
Successful missions
Failure analysis
Engineering patterns
User feedback

Virtual Reality

Users can physically experience:

Launch
Orbit
Docking
Spacewalks
Structural failures
Fire events
Explosions
Radiation emergencies
Hull breaches
Emergency repairs
Habitat construction
Robotics
Landing operations
Surface exploration

Features include:

Full OpenXR support
Motion controls
Room scale interaction
Haptic feedback
Spatial audio
Zero gravity interaction
Time accelerated playback
Slow motion analysis
Mission replay

Multiplayer

Supports collaborative engineering.

Roles include:

Mission Commander
Systems Engineer
Structural Engineer
Propulsion Engineer
Thermal Engineer
Electrical Engineer
Flight Controller
Mission Planner
Robotics Operator
Astronaut

Capabilities:

Shared workspaces
Design reviews
Live collaboration
Design branching
Version history
Replay sessions
Engineering discussions
Shared simulations

Engineering Systems

Design and simulate:

Rockets
Spacecraft
Satellites
Space stations
Orbital habitats
Lunar bases
Mars colonies
Refueling depots
Solar power stations
Mining systems
Manufacturing facilities
Space telescopes
Communications networks
Planetary landers
Surface vehicles
Robotic systems

Environmental Simulation

Includes:

Earth orbit
Lunar orbit
Martian orbit
Deep space
Asteroid environments
Planetary gravity
Radiation belts
Eclipse cycles
Solar activity
Dust environments
Regolith interaction
Planetary weather where applicable

Human Factors

Simulation includes:

Artificial gravity
Microgravity
Bone loss
Muscle loss
Fatigue
Stress
Crew workload
Oxygen consumption
Carbon dioxide buildup
Water recycling
Food systems
Medical emergencies

Mission Planning

Plan complete missions including:

Launch windows
Orbital transfers
Gravity assists
Surface operations
Cargo logistics
Crew scheduling
Maintenance
Resource allocation
Emergency contingencies
Mission timelines

Failure Simulation

Failures are physically simulated.

Examples include:

Structural collapse
Propellant leaks
Engine failures
Guidance failures
Thermal runaway
Power failures
Battery fires
Docking collisions
Orbital instability
Radiation damage
Computer faults
Human error
Cascading failures
Mission loss

Every failure includes:

Cause analysis
Timeline
Engineering explanation
Recovery options
Lessons learned

Scientific Libraries

Supports:

Material databases
Propellant databases
Aerospace standards
Orbital datasets
Space environment models
Component libraries
Engineering equations
Open scientific publications

Plugin System

Developers can create:

New spacecraft
New materials
Physics modules
AI models
Mission packs
Planetary systems
Visualization tools
Educational modules
Research extensions

Educational Features

Includes:

Guided tutorials
Interactive lessons
Engineering challenges
Scientific explanations
Mission walkthroughs
Classroom mode
Instructor dashboards
Student progress
Research mode

Developer Features

Open API
Plugin SDK
Simulation scripting
Replay API
Physics debugging
AI debugging
Mission editor
Scenario editor
Asset pipeline
Cross platform support

Technical Stack

Simulation

Rust
C++
GPU acceleration
Vulkan Compute
CUDA
Deterministic simulation

Artificial Intelligence

Local first inference
Physics aware reasoning
Symbolic mathematics
Constraint solving
Retrieval augmented engineering knowledge
Explainable AI

Graphics

Vulkan
OpenXR
Physically based rendering
HDR rendering
Dynamic lighting

Networking

Deterministic multiplayer
State synchronization
Replay recording
Version history

Specification Branding License (SBL)

Standard

Fully AGPL-3.0+ compliant system
Copyleft enforced for network deployments
Required attribution:
- Roxanne Ardary
- https://www.roxanneardary.com/

Optional

Specification Branding License (SBL)
- Attribution-free commercial deployment
- Pricing based on scale, usage, and deployment scope
- https://roxanneardary.com/reality-pass/

License & Notice Requirements

Reality Pass is released under the GNU Affero General Public License v3.0 or later (AGPL-3.0+).
By contributing to this project, you agree that your contributions will also be released under this license.

Please note the following:

All contributions must comply with the AGPL-3.0+ terms.
Under Section 7 of the license, all redistributions, forks, and derivative works must preserve attribution to:
Roxanne Ardary and roxanneardary.com.
Reality Pass specifications are free to use with attribution. A Specification Branding License can be negotiated upon request.
The project’s notice.md file tracks attribution requirements and contributor acknowledgments.
Any update that adds new contributors or modifies attribution should also update notice.md.
When submitting a pull request, ensure that any new files maintain the attribution headers where applicable.
Network-deployed versions of this software must also remain fully AGPL-3.0+ compliant, including exposure of source code modifications when applicable under the license.

Notice – Reality Pass

Attribution Requirement: Under Section 7 of the AGPL 3.0+ license, all redistributions, forks, and derivative works, including network-deployed versions of this project, must provide attribution to Roxanne Ardary and roxanneardary.com.

Contributors

This file tracks contributors and their specific contributions to the project.

Roxanne Ardary, roxanneardary.com – March 9, 2026
Created the repository for Reality Pass. Developed the core concept, physics-accurate simulation engine, AI co-design system, VR integration framework, and project documentation.
[Add other contributors here] – [Date]
[Describe contribution in one sentence]

License – Reality Pass

This repository is licensed under the GNU Affero General Public License v3.0 or later (AGPL-3.0+).

Key Points

You are free to use, modify, and distribute the code.
All redistributions, forks, and derivative works or network-deployed versions must also be licensed under AGPL-3.0+ and provide attribution to Roxanne Ardary and roxanneardary.com as required under Section 7 of the license.
The software is provided “as is,” without warranty of any kind.

For the full license text, see GNU AGPL-3.0 License.

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