Advanced simulation for complex systems
ExtendSim Pro provides a comprehensive simulation environment for modeling, analyzing, and optimizing complex systems. It combines Discrete Event Simulation, Discrete Rate Modeling, Reliability Block Diagramming, and Continuous modeling in a single platform, with advanced tools for model development, experimentation, analysis, and optimization.
From manufacturing and logistics to healthcare, transportation, reliability engineering, business processes, and high-volume production systems, ExtendSim Pro gives you the flexibility to represent complex operations, explore alternatives, identify constraints, and make informed decisions before implementing changes in the real world.
New in ExtendSim 2026, Pro expands that environment with native Python integration, enhanced diagnostics and troubleshooting, improved database performance, PDF printing enhancements, digital signatures for libraries, and productivity improvements throughout the modeling environment.
Powerful Modeling Capabilities
Discrete Event Simulation
Model systems where entities move through processes and the state of the system changes as events occur. ExtendSim Pro provides a comprehensive message-based discrete event architecture with pre-built blocks for item generation, queues, activities and delays, shutdowns, shifts, and more.
Discrete event capabilities include:
- Priorities, preemption, reneging, jockeying, blocking, and balking
- Customizable attributes and rule-based routing
- Batching and unbatching of items for processings
- Warm-up periods with statistical clearing, item logging, and history
- Statistical analysis with confidence intervals
- Shifts for controlling resources and activities
- Resource pools for optimizing constraints
- Customizable queuing algorithms
- Query Equation capabilities for ranking and selecting records from ExtendSim database tables
- Mixed modeling using Discrete Event, Continuous, Monte Carlo, Agent Based, and State/Action modeling techniques
Discrete Rate Modeling
Use the included Rate library to model high-volume and bulk-flow processes involving tanks, levels, valves, storage, and the rate-based movement of system components. Discrete Rate modeling is particularly useful for production lines and other systems where quantities flow through a process rather than moving as individual entities.
Reliability Block Diagramming
Analyze the reliability and availability of systems using ExtendSim Pro's Reliability capabilities. Reliability Block Diagramming can be used independently or combined with ExtendSim process simulation to evaluate reliability within the context of a dynamic operating system.
Continuous Modeling
Model any process where time advances in equal steps and values are recalculated at each periodic step. Simulates continuous, time-based processes, typically in the fields of business, science, or engineering.
What's New in ExtendSim Pro 2026
Python Integration
Connect ExtendSim models directly with Python through the new Python Bridge block. Exchange data between ExtendSim and Python during simulation runs and access Python libraries for analytics, machine learning, optimization, data processing, and visualization. The Python Bridge includes embedded code editors, initialization and main scripts, input and output connectors, and an Equation-block-style interface.
This opens up practical applications such as advanced mathematical analysis, machine learning and AI-enabled decision support, hybrid simulation and data-science workflows, and integration with external applications and data sources.
Improved Diagnostics & Troubleshooting
The new Notification Window and Diagnostic Log provide more visibility into what is happening during a simulation while reducing reliance on disruptive pop-up dialogs.
The Notification Window provides a centralized location for informational messages, warnings, errors, and diagnostic output from ExtendSim, MODL code, and Python code. The Diagnostic Log provides comprehensive logging for debugging, diagnostics, and crash analysis.
Enhanced Databases
ExtendSim 2026 includes database scalability and performance improvements designed to support more efficient model development and data management.
Additional Improvements
- Improved Model Navigation - New zoom capabilities and improved navigation between named connections make it easier to work with large and complex models. Named Connection Navigation provides a faster way to locate the origins and destinations of connections, while enhanced zoom controls provide more precise control of the model view.
- Flexible PDF Printing - Produce PDF output directly from ExtendSim with improved control over model printouts. The new Print PDF capability supports page breaks, orientation and sizing, including printing an entire model on one page or across multiple pages.
- Digital Signatures - ExtendSim 2026 adds digital signature support for ExtendSim libraries. Digital signatures help protect against executing modified or tampered files by providing a trusted mechanism for verifying file integrity.
- ExtendSim 2026 also includes enhancements to file saving, APIs, licensing, database management, simulation operation, and overall stability and usability.
Advanced Analysis & Integration
ExtendSim Pro also includes:
- Scenario Manager for designing and managing simulation experiments
- Optimizer for identifying combinations of model parameters that best meet defined objectives
- Multicore Analysis for simulation analysis
- Stat::Fit® for determining which statistical distributions provide a good fit for underlying data
- Excel Add-In for creating and configuring ExtendSim databases in Excel for use in ExtendSim models
- Oracle connectivity for importing from and exporting to Oracle databases
- All core modeling capabilities included with ExtendSim CP
Where ExtendSim Pro is Used
Manufacturing and production
Material handling
Logistics, distribution, and supply chains
Transportation and traffic
Mining and bulk materials
Oil, gas, and chemical processes
Packaging and high-volume production
Reliability engineering
Healthcare and emergency departments
Call and customer contact centers
Capacity planning
Inventory and resource planning
Lean and Six Sigma
Communication and network systems
Financial and insurance services
Research and process optimization
Licensing
ExtendSim Pro offers flexible licensing to fit the needs of individuals and organizations.
Choose your License Type:
- Perpetual – Purchase a Perpetual license to continue using that version of ExtendSim indefinitely. An annual Maintenance & Support Plan (MSP) provides access to upgrades and support.
- Subscription – License ExtendSim for a yearly subscription period, with continued use of the software based on maintaining an active Subscription.
Then choose your License Option:
- Individual – For a single user on one device.
- Floating – For multiple users across multiple devices, with concurrent access managed through the ExtendSim License Manager.
- Node-Locked – For multiple users sharing the same device.
Try ExtendSim Pro
Experience the full power of ExtendSim Pro with a free 30-day Trial
Create and modify models, run simulations and animations, perform experiments, analyze results, and explore the advanced modeling and development capabilities available in ExtendSim Pro.
Purchasing...
Individual and Node-Locked ExtendSim Pro Licenses
ExtendSim Pro Individual and Node-Locked licenses may be purchased and downloaded through the ExtendSim Store, ordered directly through the ExtendSim Team or from your local ExtendSim reseller.
A Floating License of ExtendSim Pro
As Floating licenses must be customized for specific concurrent usage, they must be purchased through the ExtendSim Team or one of its distributors (Activation keys for Floating licenses are not available in the online store.) In the US, ANDRITZ Inc. is the sole source for Floating licenses. Outside the US, please contact your local ExtendSim Distributor.
Previously using ExtendSim DE?
ExtendSim DE has been merged into ExtendSim Pro. ExtendSim Pro 2026 includes the discrete event modeling capabilities previously available in ExtendSim DE, along with Discrete Rate Modeling, Reliability Block Diagramming, Python integration, and additional advanced capabilities.