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Best Simulation Software in 2026

• 69 apps
• Research read 28 Sept 2026
• How the order is worked out

1. 1

   AnyLogic

   Free plan APILinuxMac+3

   Choose AnyLogic if you need to model complex systems using combined simulation methods, industry libraries, and integrations.

   7.6 Free plan · 30-day trial Visit site
2. 2 F

   FlexSim

   Free plan WebWindows

   Choose FlexSim if you need 3D discrete-event modeling, scenario analysis, and customization options for operations systems.

   7.2 Pricing on request Visit site
3. 3

   COMSOL Multiphysics

   by COMSOL Multiphysics

   Free trial APILinuxMac+3

   COMSOL Multiphysics covers a broad modeling workflow, with tools for simulation, model management, and custom interfaces.

   6.5 Pricing on request Visit site
4. 4 A

   AIBECS.jl

   Free plan LinuxMacWindows
   6.4 Free plan Visit site
5. 5 E

   ExtendSim

   Free trial APISelf-hostedWeb+1

   Choose ExtendSim if you need configurable process simulation, statistical analysis, and tools for exploring system configurations.

   6.4 From $50 · 30-day trial Visit site
6. 6 N

   NetLogo

   by NetLogo Center at Northwestern University

   Free plan WindowsMacLinux+1
   6.4 Free plan Visit site
7. 7 G

   Geant4

   Free plan LinuxMacWindows
   6.3 Free plan Visit site
8. 8 C

   CHARMM

   Free plan LinuxMac
   6.2 Free plan Visit site
9. 9 A

   AnimatLab

   Free plan Windows
   6.1 Free plan Visit site
10. 10 A

    Ansys SpaceClaim

    Free trial Windows

    Choose Ansys SpaceClaim if you need Windows-based 3D design with direct modeling and its assembly, sheet-metal or surface tools.

    6.1 Pricing on request Visit site
11. 11 G

    GoldSim

    Free plan WebWindows
    6.1 Free plan · 30-day trial Visit site
12. 12 J

    JaamSim

    Free plan LinuxMacWindows
    6.1 Free plan Visit site
13. 13 E

    EasyVVUQ

    Free plan Linux
    6.0 Free plan Visit site
14. 14 E

    ESPResSo++

    Free plan Linux
    6.0 Free plan Visit site
15. 15 M

    MuJoCo

    Free plan LinuxMacWindows
    6.0 Free plan Visit site
16. 16 O

    OpenFOAM

    Free plan LinuxMacWindows
    6.0 Free plan Visit site
17. 17 O

    OpenModelica

    Free plan LinuxMacWindows
    6.0 Free plan Visit site
18. 18 P

    popkinmocks

    Free plan LinuxMacWindows
    6.0 Free plan Visit site
19. 19 P

    Powersim Studio

    Free plan WebWindows
    6.0 Free plan · paid from €299 · 30-day trial Visit site
20. 20 P

    PyPSA

    Free plan LinuxMacWindows
    6.0 Free plan Visit site
21. 21 A

    Ansys Fluent

    by Ansys Fluent

    Paid LinuxSelf-hostedWindows

    Fluent offers a broad CFD workflow with extensive physics, solver, meshing, optimization, and integration options.

    5.9 Pricing on request · 30-day trial Visit site
22. 22 D

    diffsol

    Free plan
    5.9 Free plan Visit site
23. 23 F

    ForeFire

    Free plan Linux
    5.9 Free plan Visit site
24. 24 M

    Mesa

    Free plan Web
    5.8 Free plan Visit site
25. 25 O

    OPM Simulators

    Free plan LinuxMac
    5.8 Free plan Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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