20-sim
20-sim: A Windows desktop tool for multidomain system modeling, simulation, analysis, and code generation. Ranked #46 of 69 in Simulation Software by our editors (4.5/10); pricing: Pricing on request; best for engineers modeling dynamic physical systems.
At a glance
- Editor score4.5 / 10
- PricingPricing on request
- Best forEngineers modeling dynamic physical systems
- Free planNo
- Cloud deploymentNo
- Facts checked24 Sep 2026
Where it wins
- Supports bond-graph, block-diagram, and equation-based modeling.
- Models coupled physical domains, including mechanical, electrical, and hydraulic systems.
- Combines simulation and experimentation with analysis, visualization, and code generation.
Where it doesn't
- Runs as a Windows desktop application rather than a cloud deployment.
- Pricing is handled through contact with sales.
- Its focus is dynamic physical systems, not agent-based or finite-element simulation.
Our verdict on 20-sim
20-sim is engineering modeling and simulation software for dynamic systems, with a particular focus on mechatronic systems. Engineers, researchers, and educators can represent a system with bond graphs, block diagrams, equations, and physical-domain components, then simulate its behavior and analyze results. It is a Windows desktop application intended for model-based design workflows, including experimentation and generating implementation code from models. Its fit is strongest when the work centers on coupled physical systems and their dynamics.
The modeling options give 20-sim a multidomain focus: mechanical, electrical, hydraulic, and control systems can be represented within the product. Users can move from model representation to dynamic-system simulation and experimentation, then use analysis and visualization to examine results. Code generation extends that workflow toward model implementation. These capabilities make it relevant to engineering work where the relationships between physical domains matter; it is less suited to teams seeking agent-based or finite-element simulation, which are not supported.
20-sim is a commercial Windows desktop product from Controllab Products B.V., and its pricing model is contact sales rather than a free plan. The desktop format suits users who want a local engineering application, but not teams looking specifically for cloud deployment. Its stated company-size fit spans small, mid-market, and enterprise organizations, though the right choice depends more on the modeling workflow than organization size. Choose it for bond-graph, block-diagram, equation-based, and multidomain physical modeling with simulation and code generation; look elsewhere if cloud deployment or agent-based and finite-element capabilities are central requirements.
Your product? Our editors can test 20-sim in depth and publish a review, labelled as paid · from $149/mo →
20-sim pricing
20-sim fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Discrete-event models | Not verified |
| System-dynamics models | Not verified |
| Agent-based models | No |
| Finite-element analysis | No |
| Multiphysics simulation | Yes |
| Cloud deployment | No |
| API access | Not verified |
| Deployment | Desktop |
| Platforms | Windows |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Pricing on request |
| Website | 20sim.com |
| Facts checked | 24 Sep 2026 |
Alternatives to 20-sim
- SimulinkA broad engineering simulation environment for modeling, verification, and code generation.9.4
- COMSOL MultiphysicsA desktop environment for coupled physics models, engineering studies, and custom simulation apps.9.3
- Ansys FluentA broad CFD toolkit for engineering teams that need advanced physics and scalable solving.9.2
Used 20-sim? Be the first to review it
The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used 20-sim for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
Write a reviewTwo minutes · verified accounts only · read by an editor before it appears
Featured on iTechGuides
20-sim is listed in our Simulation Software directory. Add the badge to your site — it links back to this page.
<a href="https://www.itechguides.com/products/20-sim/"><img src="https://www.itechguides.com/best/badge/20-sim.svg" alt="Featured on iTechGuides" width="230" height="46"></a>
Guides on simulation software
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update