CATEGORY
Simulation 1,973 crates
Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.
numra-ddeDelay differential equation solvers for Numra: method of steps with embedded Runge-Kutta and Hermite history interpolation.169LicenseRef-Numra-Academic-Research-NonCommercial
infinity-rsSafe, idiomatic Rust bindings for the MSFS 2024 WASM SDK.168MIT
rayon-caHigh-performance cellular automaton's implementation in Rust LIB with CLI app and WebP animation export.168MIT
dreamwell-gatesDreamGate — high-throughput Weave validation, batching, and dispatch for Dreamwell.167Apache-2.0
numra-ideVolterra integro-differential equation solvers for Numra: general quadrature solver plus Prony-series fast path for exponential…167LicenseRef-Numra-Academic-Research-NonCommercial
oxiphysics-constraintsConstraint solvers for the OxiPhysics engine167Apache-2.0
rustsim-coreCore ABM engine: agents, models, stores, schedulers, stepping, data collection166MIT
pvlib-rustA Rust port of pvlib-python: solar energy modeling toolkit166Apache-2.0
rssn-advancedThis is rssn-advanced: The next generation symbolic core of rssn.164Apache-2.0
trading-maidA high-fidelity crypto futures backtesting and live trading framework with matching, margin, leverage and liquidation simulation.164Apache-2.0
micro_traffic_simgRPC interface for microscopic traffic simulation via cellular automata164Apache-2.0
surge-bindingsSurge CLI integration crate for the Surge power flow solver163PolyForm-Noncommercial-1.0.0
openoutcryOpenOutcry — leak-free point-in-time trading-agent environment (a Gym for trading agents).161MIT OR Apache-2.0
btcoreHigh-performance portfolio backtesting engine in pure Rust161non-standard
symbios-textureProcedural texture generation core for bevy_symbios_texture.160MIT
rustrade-executionStream private account data from financial venues, and execute (live or mock) orders.160MIT
shadow-network-simNetwork simulation with adversary models, censorship simulation, and statistical analysis159MIT
rustrade-dataHigh performance & normalised WebSocket intergration for leading cryptocurrency exchanges - batteries included.159MIT
astrodynGateway to the astrodyn orbital-dynamics framework — a pure-Rust, engine-agnostic port of NASA JEOD (spherical-harmonics gravity,…157MIT OR Apache-2.0
beamsrchBeam search heuristic abstraction157MIT OR Apache-2.0
pavanPavan — aerodynamics engine for atmosphere, airfoils, panel methods, VLM, compressible flow, stability, propulsion, and CFD156GPL-3.0
symbios-tensorA procedural generation engine for urban layouts.156MIT
oxicuda-quantumQuantum simulation primitives for OxiCUDA — state-vector simulation, Pauli expectation values, VQE/QAOA, density matrices,…156Apache-2.0
flybywireless-simconnect-protoSimConnect wire protocol: packet encoding/decoding, enums, and version tables. No I/O.155MIT
rlevo-reinforcement-learningDeep reinforcement learning algorithms for rlevo (internal crate — use `rlevo` for the full API)155MIT OR Apache-2.0
stabilizer-ch-form-rustA Rust library implementing CH form representation of stabilizer states for quantum computing simulations.154MIT
intrico-coreCore execution engine and circuit primitives for Intrico quantum computing.154Apache-2.0
hydra-engine-wdsHydra water distribution engine — data model, hydraulic solver, quality engine, session API, analytics154AGPL-3.0-only
neuropoolSpatial neuron point cloud — LIF neurons in 3D space with mastery learning, tissue physics, migration, pruning, and stamina149MIT OR Apache-2.0
flybywireless-simconnect-derive#[derive(DataDefinition)] proc macro for the simconnect crate.149MIT
oxiphysics-lbmLattice Boltzmann method for the OxiPhysics engine149Apache-2.0
macro_traffic_sim_coreCore library for macroscopic traffic simulation using the classical 4-step demand model.148Apache-2.0
nautilus-architect-axAX Exchange integration adapter for the Nautilus trading engine148LGPL-3.0-or-later
symbios-audioAn algorithmic audio generator.146MIT
gamemaker-randRust implementation of the WELL512a PRNG used by Gamemaker, and related things145MIT
avataraAvatara — divine archetype engine: theological and mythological personality mapping across traditions145GPL-3.0-only
vanaspatiVanaspati — botany and plant behavior engine for growth, photosynthesis, seasonal cycles, and ecosystems145GPL-3.0-only
nautilus-coinbaseCoinbase Advanced Trade integration adapter for the Nautilus trading engine144LGPL-3.0-or-later
oxscapeOxscape enables parallel flow graph (D8, Dinf) traversal in Digital Elevation Models143MIT OR Apache-2.0
taraTara — stellar astrophysics engine for star classification, evolution, nucleosynthesis, and spectral analysis143GPL-3.0-only
spin-simIsing model Monte Carlo: Metropolis, Gibbs, Wolff, Swendsen-Wang, parallel tempering, Houdayer ICM143MIT
stratneo-nautilus-indicatorsTechnical indicators for the Nautilus trading engine142LGPL-3.0-or-later
nautilus-dydxdYdX v4 exchange integration adapter for the Nautilus trading engine142LGPL-3.0-or-later
darkmatterDark matter simulation engine — gravitational fields, particle dynamics, halo stability, and cosmological constants140MIT
brahmandaBrahmanda — galactic structure, cosmic web topology, and large-scale cosmological dynamics140GPL-3.0-only
heuroptA practical Rust toolkit for heuristic single-, multi-, and many-objective optimization.138MIT
flybywireless-simconnectPure-Rust SimConnect client (named pipe or TCP), no SimConnect.dll dependency.135MIT
systemrs-coreModule/elaboration ergonomics for SystemRS: process and sensitivity builders, lifecycle callbacks.134Apache-2.0
volterra-solverActive nematic solvers: operator splitting, Beris-Edwards, Stokes (stream-function + Killing), and defect tracking on Cartesian…134MIT
percli-wasmWASM build of the Percolator risk engine simulator133Apache-2.0 OR MIT
tri_grid_simDeterministic tick-based simulation on a 2D grid with directional triangles132MIT OR Apache-2.0
percli-programSolana program for the Percolator risk engine132Apache-2.0 OR MIT
gemphyGEM Physics: Derives physical constants from geometric impedance in a horn torus vacuum.132MIT
gfcoreGo Fish card game engine131MIT OR Apache-2.0
rust_robotics_coreCore types, traits, and error types for the RustRobotics workspace131MIT
dx9Rust library for DirectX 9.0c130MIT
rlevo-benchmarksBenchmarking harness for rlevo (internal crate — use `rlevo` for the full API)129MIT OR Apache-2.0
rlevo-environmentsRL benchmark environments and landscapes for rlevo (internal crate — use `rlevo` for the full API)129MIT OR Apache-2.0
imitatort轻量级多Agent公司模拟框架128MIT
phasmaTerminal interface for the caustic Vlasov-Poisson solver128GPL-3.0
gsim-rsA G-Code simulator written in Rust.128MIT OR Apache-2.0
rngo-simCore simulation engine for rngo127MIT OR Apache-2.0
hydra-sdkWater distribution network simulator — EPANET-compatible extended-period simulation126AGPL-3.0-only
systemrs-channelsPrimitive channels for SystemRS: Signal/Buffer/Fifo/Clock with evaluate-update determinism.125Apache-2.0
ai-endpoint-simulatorMulti-dialect AI endpoint simulator (OpenAI, Anthropic, Ollama, Cohere, Gemini) — SSE streaming for benchmarking125MIT OR Apache-2.0
surge-marketHigher-level market workflows, adapters, and dataset helpers for Surge dispatch125PolyForm-Noncommercial-1.0.0
ringkernel-montecarloGPU-accelerated Monte Carlo primitives for RingKernel (Philox RNG, variance reduction)124Apache-2.0
specmock-runtimeRuntime servers for HTTP (OpenAPI), WebSocket (AsyncAPI), and gRPC (Protobuf) mocking124Apache-2.0
swarm-engineHigh-throughput, low-latency Agent Swarm orchestration framework124MIT
numraNumra: a composable Rust workspace for scientific computing — differential equations (ODE/SDE/DDE/FDE/IDE/PDE/SPDE),…124LicenseRef-Numra-Academic-Research-NonCommercial
oxiphysics-sphSmoothed-particle hydrodynamics for the OxiPhysics engine124Apache-2.0
evm-amm-stateEVM-backed AMM state loading, cache synchronization, and pool simulation models123MIT OR Apache-2.0
swarm-engine-uiCLI and Desktop UI for SwarmEngine122MIT
rustsim-spacesSpace implementations (grid, continuous, graph, hybrid) for rustsim121MIT
i8051-disassemblerAn i8051 disassembler, useful for structured disassembly.121MIT OR Apache-2.0
dreamwell-nagaDreamwell GPU harness — Naga IR shader validation, layout verification, meshlet/Dreamlet tests120Apache-2.0
oxiphysics-softbodySoft body simulation for the OxiPhysics engine120Apache-2.0
dreamwell-mediaDreamwell media pipeline — audio/video decode via FFmpeg, format conversion, streaming118Apache-2.0
scxmlW3C SCXML statechart library — parse, validate, export, and simulate Harel statecharts. Framework-agnostic, WASM-ready, rkyv…118MIT OR Apache-2.0
aws-local-s3Local AWS S3 mock with filesystem storage, versioning, and multipart uploads117MIT OR Apache-2.0
aeon-tkToolkit for running finite difference simulations with adaptive mesh refinement117MIT OR Apache-2.0
ergo-runtimeCanonical primitive contracts and reference implementations for the Ergo graph execution engine117MIT OR Apache-2.0
jiaxin2006-tg-rcore-tutorial-t2l4Student AI4OSE lab crate for Experiment 4 of rCore Tutorial: pluggable scheduler comparison (FCFS, SJF, RR, MLFQ, CFS-like) with…117GPL-3.0
nautilus-betfairBetfair exchange integration adapter for the Nautilus trading engine116LGPL-3.0-or-later
oxiphysics-mdMolecular dynamics simulation for the OxiPhysics engine116Apache-2.0
oxiphysics-wasmWebAssembly bindings for the OxiPhysics engine116Apache-2.0
cargo-fmiCargo subcommand for FMI packaging and tooling115MIT OR Apache-2.0
systemrs-tlm2TLM-2.0 for SystemRS: generic payload, transport, phases, sockets, and a memory target.115Apache-2.0
ticker-coreCore engine for Ticker — a tick-based spreadsheet for time series, finance, and simulation.115BUSL-1.1
rlevo-hybridHybrid evolutionary + RL strategies for rlevo (internal crate — use `rlevo` for the full API)115MIT OR Apache-2.0
rlmesh-cliInternal RLMesh crate (unstable Rust API): the rlmesh command-line binary.114MIT OR Apache-2.0
oxiphysics-vehicleVehicle dynamics simulation for the OxiPhysics engine114Apache-2.0
ocgcore-ffiLow-level Rust bindings for edo9300/ygopro-core (aka `ocgcore`)114AGPL-3.0-only
kj-bevy-realistic-sunSets a directional light to point in a realistic direction, accounting for latitude and time of year113non-standard
fizzbee-mbtFizzBee Model Based Testing (MBT) Rust binding113Apache-2.0
rlmesh-sandboxInternal RLMesh crate (unstable Rust API): Docker-backed environment packaging and execution.112MIT OR Apache-2.0
nufastFast and accurate three-flavor neutrino oscillation probabilities in vacuum and matter112MIT
ionotraceHigh-performance ionospheric ray tracing engine — Hamilton's equations for HF radio propagation through a magnetized, collisional…112MIT
box3d-rustPure Rust port of the Box3D 3D physics engine112MIT
rsmithReverse Monte Carlo structure refinement against scattering data111MIT
spintronicsPure Rust library for simulating spin dynamics, spin current generation, and conversion phenomena in magnetic and topological…111Apache-2.0
knut-popsimCanonical pure-Rust generator for the synthetic Swedish 11-million-person population graph (12-label graph DB). No…110MIT OR Apache-2.0
physics_sandboxSmall rigid-body physics sandbox with pluggable integrators, environments, collisions and an event bus. Optional retro ASCII…109MIT OR Apache-2.0
rustradeFramework for building high-performance live-trading, paper-trading and back-testing systems108MIT
rlmeshInternal RLMesh crate (unstable Rust API): Rust bindings for model-environment evaluation; build on the rlmesh Python package.107MIT OR Apache-2.0
rifftRIFFT FFT/DLPack/FFI bridge107Apache-2.0 OR MIT
u-rasUniversal Resource Allocation and Scheduling - Domain-agnostic optimization with GA, CP-SAT, dispatching rules, and time…107MIT OR Apache-2.0
flybywireless-simconnect-cliManual smoke-test binary for the simconnect crate.106MIT
hydra-cliCLI for Hydra — reads network descriptions from files, writes results to files106AGPL-3.0-only
gravita-physicsA modular 2D physics engine for real-time games and simulations105MIT
radiate-pgmA Rust library for genetic algorithms and artificial evolution.105MIT
rlevo-metrics-registrySingle-source-of-truth typed registry of canonical rlevo training metrics, shared by the benchmarks recorder and the WASM report…105MIT OR Apache-2.0
symbios-robotEngine-agnostic robot interpretation layer for Symbios L-Systems using glam.103MIT
isaac-sim-bridgeCxx::bridge core that forwards Isaac Sim sensor and actuator buffers into Rust callbacks.103MPL-2.0
rlmesh-adaptersInternal RLMesh crate (unstable Rust API): declarative env-model IO spec resolution.101MIT OR Apache-2.0
sindr-devicesPure electronics device physics: diode, BJT, MOSFET companion models for MNA circuit simulation. Companion crate to sindr.100MIT OR Apache-2.0
rustsim-modesShared multimodal mode semantics for rustsim: travel modes and compact allowed-mode sets98MIT
cityjson-fakeGenerate fake CityJSON data for testing purposes98MIT OR Apache-2.0
nautilus-lighterLighter integration adapter for the Nautilus trading engine98LGPL-3.0-or-later
box2d-rustPure Rust port of the Box2D v3 2D physics engine98MIT
pathwise-coreHigh-performance SDE simulation engine: Euler, Milstein, SRI (strong-order 1.5), CIR, Heston, correlated OU97MIT
sundials-rsSafe Rust bindings to the SUNDIALS ODE/DAE solver library (CVODE, CVODES, IDA, IDAS)97MIT OR Apache-2.0
aws-local-cognitoLocal AWS Cognito mock with user pools, auth flows, and JWT tokens96MIT OR Apache-2.0
systemrs-tlm-utilsTLM-2.0 utilities for SystemRS: quantum keeper, PEQs, AT protocol, LT<->AT adapters, convenience sockets.95Apache-2.0
libloongRust bindings for the libloong LoongArch emulator - a high-performance 64-bit LoongArch virtual machine94non-standard
rustsim-broadphaseSpatial broadphase data structures (uniform grids, neighbour queries) for rustsim in 2-D and 3-D94MIT
gin-rummy-engineGin rummy bots: heuristic and Monte Carlo strategies over an information-hygienic view93Apache-2.0
systemrs-pdesTier-1 conservative, barrier-synchronous parallel discrete-event simulation (PDES) for SystemRS: quantum-synchronized regions…92Apache-2.0
thevenin-control.control block interpreter for thevenin circuit simulator92BSD-3-Clause
systemrs-macrosProc-macros for SystemRS: the #[module] attribute that generates module registration boilerplate.91Apache-2.0
systemrs-traceTracing/telemetry for SystemRS: stage-callback sampling, transaction-record sink, off-thread writer.91Apache-2.0
systemrs-twinDigital-twin layer for SystemRS: real-time pacing, external-input gating, seeded RNG, and deterministic replay.91Apache-2.0
lineage-rsSoftware identity preserved through irreversible change91MIT
zeta-quantumQuantum compiler + API service using Phi-IR (Affine Weyl words), modality-aware QPU routing, and obstruction cost S_X with BMS…91MIT
okuPCB-inspired procedural city generation — a domain-specific facade over ogun91MIT
systemrs-tlm1TLM-1.0 for SystemRS: the analysis sublayer (ports/fifo/triple) for non-intrusive telemetry.90Apache-2.0
aws-local-stsLocal AWS STS mock — GetCallerIdentity and AssumeRole90MIT OR Apache-2.0
jupitersJupiter celestial simulation crate for the MilkyWay SolarSystem workspace90MIT
titanssTitanss is a celestial simulation crate for the MilkyWay SolarSystem workspace90MIT
aws-local-snsLocal AWS SNS mock with SQS fan-out89MIT OR Apache-2.0
titaniasTitania celestial simulation crate for the MilkyWay SolarSystem workspace89MIT
nullgeoGeneral-relativistic null-geodesic ray tracer (library)89MIT OR Apache-2.0
evm-amm-searchGraph-based AMM route and cycle search over evm-amm-state pools88MIT OR Apache-2.0
oasis-simRound-based social simulation with LLM agents (feeds, votes, run_state.json I/O)88MIT
threes_simulatorAn implementation of the Threes! game algorithm, as best as I could figure it out87GPL-3.0
omega-consciousnessConsciousness substrate for ExoGenesis Omega - IIT, Free Energy Principle, and Global Workspace87MIT
macro_traffic_simgRPC interface for macroscopic traffic simulation via 4-step demand model87Apache-2.0
aws-local-iamLocal AWS IAM mock — roles, policies, and attachments87MIT OR Apache-2.0
aws-local-organizationsLocal AWS Organizations mock — accounts, OUs, and SCPs87MIT OR Apache-2.0
aws-local-sqsLocal AWS SQS mock with in-memory queues, message lifecycle, and visibility timeouts87MIT OR Apache-2.0
aws-local-dynamodbLocal AWS DynamoDB mock with SQLite-backed storage87MIT OR Apache-2.0
aws-local-sesLocal AWS SES mock with identity verification, DKIM, and notification persistence87MIT OR Apache-2.0
aws-local-rdsLocal AWS RDS mock with real Postgres container provisioning via Docker87MIT OR Apache-2.0
aws-local-bedrockLocal AWS Bedrock mock — Runtime, Agent Runtime, and KB management87MIT OR Apache-2.0
omega-strange-loopsSelf-referential strange loops for ExoGenesis Omega - meta-cognition and self-models86MIT
omega-sleepSleep/wake cycle simulation for ExoGenesis Omega - memory consolidation during SWS/REM86MIT
omega-brainUnified brain-like cognitive architecture integrating all Omega components85MIT
nautilus-deriveDerive integration adapter for the Nautilus trading engine85LGPL-3.0-or-later
neurodoomDeterministic no_std Doom engine with semantic and depth perception buffers for AI85BSD-3-Clause
crusty_cardsPlaying Card and Deck Library84Beerware
malcolmChaos engineering fault injection library84MIT OR Apache-2.0
dice_roller_rsA Rust library for simulating dice rolls in RPG games82MIT OR Apache-2.0
vvcm-rsKinematics of multi-robot transporting systems with a deformable sheet using VVCM.82Apache-2.0
rngoRust library for rngo simulations82MIT OR Apache-2.0
quantreQuant wheels reinvented in Rust.79MIT
systemrsSystemRS: a Rust, TLM-only equivalent of SystemC for transaction-level digital twins (facade).79Apache-2.0
dreamwell-ufbxSafe Rust bindings to ufbx — FBX import for Dreamwell78Apache-2.0
isaac-sim-arrowApache Arrow schema and decoders for Isaac Sim sensor and actuator records.77MPL-2.0
symbitSymbolic bitvector library with bitwise and integer arithmetic support76MPL-2.0
extxyz-typestypes for extxyz-sys and extxyz76MIT OR Apache-2.0
evomujocoA simple wrapper around mujoco-rs to make simulation easier.75MIT OR Apache-2.0
qtest-stm32f4nucleoQTest abstractions for STM32F4 Nucleo boards75MIT OR Apache-2.0
simvccVapor compression refrigeration cycle simulator in Rust75MIT
earthsHigh-fidelity Earth simulation engine — orbit, atmosphere, geology, hydrology, biosphere, terrain, lighting, rendering,…74MIT
ruqu-exoticExperimental quantum-classical hybrid algorithms - quantum memory decay, interference search, reasoning error correction, swarm…74MIT
nautilus-event-storeEvent store and authoritative log of state-affecting messages for the Nautilus trading engine74LGPL-3.0-or-later
specmock-sdkRust SDK for embedding spec-mock runtime in tests and process mode73Apache-2.0
dreamwell-intelligenceQuantumGPT (The Loom) — Quantum Information Pretrained Transformer. Density matrix attention with intrinsic thermodynamic loss,…73Apache-2.0
tritonsTriton celestial simulation crate for the MilkyWay SolarSystem workspace73MIT
pflowPetri net modeling with ODE simulation and token model DSL73MIT
oxiphysics-articulatedFeatherstone articulated-body dynamics (RNEA + ABA) for OxiPhysics73Apache-2.0
multilinear-storyGame-facing story runtime over a multilinear net: presentation wiring and owner-routed callable events73MIT OR Apache-2.0
dreamwell-projectsDreamwell project templates — starter kits for QTTPS applications72Apache-2.0
rustsim-trafficTransport-domain semantics for rustsim: multimodal movement, controls, and routing metadata72MIT
venussVenus celestial simulation crate for the MilkyWay SolarSystem workspace72MIT
phobossPhobos celestial simulation crate for the MilkyWay SolarSystem workspace72MIT
missile-simMissile-sim is a high-performance missile simulation library. It provides accurate physics modeling, real-time performance, and a…72MIT
rustsim-vehicleVehicle kinematic and dynamic models for rustsim: Intelligent Driver Model (longitudinal), kinematic bicycle (lateral), and MOBIL…71MIT
rustsim-transitPublic-transit primitives for rustsim: stops, routes, schedules, boarding/alighting queues, dwell times, headway control71MIT
starsfactoryStellar factory simulation crate for star generation and evolution71MIT
dwarfplanetsfactoryDwarf planet factory — classify, build and catalogue dwarf planets of any type: Kuiper belt, scattered disk, plutino, cold…71MIT
planetsfactoryPlanet factory — classify, build and catalogue planets for any star system: Solar System, TRAPPIST-1, Kepler-90, Proxima…71MIT
enceladussEnceladus celestial simulation crate for the MilkyWay SolarSystem workspace71MIT
ganymedesGanymede celestial simulation crate for the MilkyWay SolarSystem workspace71MIT
oberonsOberon celestial simulation crate for the MilkyWay SolarSystem workspace71MIT
weaver-coreWeaver core types — IDs, events, tags, math, errors for the Dreamwell scene weaving subsystem.71Apache-2.0
sunsSun celestial simulation crate for the MilkyWay SolarSystem workspace71MIT
ruqu-wasmRun quantum simulations in the browser - WebAssembly bindings for quantum circuits with 25-qubit support, VQE, Grover, QAOA71MIT
par-particle-lifeGPU-accelerated particle life simulation in Rust71AGPL-3.0-or-later
rustsim-crowdMicroscopic crowd and pedestrian locomotion for rustsim: 2-D and layered 3-D, with Social Force, Collision-Free Speed,…71MIT