Life & fun · alternatives · 2026

24 alternatives to Principia

Physics Simulator

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Principia launched in 2016; newer entries below may have overtaken it.

1. 1
   Odyssey 3▲159

   A world model that simulates physics in real time

   14d ago · odyssey.systems · its alternatives →

2. 2
   Proto.io▲135

   Fast, fully-interactive, high-fidelity mobile prototypes

   2014 · proto.io · its alternatives →

3. 3
   Experiment.com▲112

   Make science move faster

   2014 · experiment.com · its alternatives →

4. 4
   MTN▲71

   A game of observation

   2014 · apps.apple.com · its alternatives →

5. 5
   Pt▲75

   A code experiment on point, form, and space

   2015 · williamngan.github.io · its alternatives →

6. 6
   Fast Forward Labs▲66

   Reporting on the Recently Possible

   2014 · its alternatives →

7. 7
   Vamos▲167

   Local Event Discovery

   2014 · gbmweb.com · its alternatives →

8. 8
   Particle Clicker▲73

   Highly addictive detector simulation game from CERN

   2014 · particle-clicker.web.cern.ch · its alternatives →

9. 9
   Concentric▲68

   A game of concentric concentration

   2015 · apps.apple.com · its alternatives →

10. 10
    Peggsite▲103

    A one-page board to express yourself

    2014 · peggsite.com · its alternatives →

11. 11
    Experiments▲138

    Plan & track your experiments

    2014 · its alternatives →

12. 12
    shotclock▲61

    Time is a game

    2014 · apps.apple.com · its alternatives →

13. 13
    30/30▲76

    An Interesting Approach to Time & Task Mgmt

    2014 · apps.apple.com · its alternatives →

14. 14
    Penflip▲119

    A social writing platform

    2013 · its alternatives →

15. 15
    Soundation▲76

    Fun electronica creation for everyone

    2014 · soundation.com · its alternatives →

16. 16
    Programmar▲88

    A place for developers to read and write

    2015 · programmar.io · its alternatives →

17. 17
    Coursebirdie▲74

    Learn from industry professionals for free

    2015 · its alternatives →

18. 18
    GotIt!▲71

    On-demand tutoring and study support

    2014 · its alternatives →

19. 19
    Pointer▲95

    A reading club for developers

    2015 · pointer.io · its alternatives →

20. 20
    PixelSpace▲68

    A tediously accurate scale model of the solar system

    2014 · joshworth.com · its alternatives →

21. 21
    Quadski▲67

    Amphibious Quad

    2014 · gibbssports.com · its alternatives →

22. 22
    Deck▲84

    One-touch presentations

    2014 · its alternatives →

23. 23
    Flipgrid▲56

    Video Discussion Platform for Schools and Enterprise

    2014 · its alternatives →

24. 24
    Earth: A Primer▲76

    A science book/app for playful people

    2015 · earthprimer.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →