Cyens Toy

  • firefreak11
    30th Jan 2018 Member 17 Permalink


    The only mod that simulates organic chemistry and relativity!

    Cyens Toy is a mod by firefreak11 that aims to revive The Science Toy and the Unrealistic Science Mod series in order to create an up-to-date version that will do more than ever before by implementing different branches of science. Formerly, each branch was released as a module. The current development strategy is continuous integration.



    completeOrganic Chemistry


    completeGeneral Relativity

    completeQuantum Chromodynamics

    inDevNuclear Physics
    inDevThe Standard Model

    notYetQuantum Electrodynamics


    Other Features

    completeDescriptive HUD

    completeDescriptive Properties Tool

    notYetMore Sign Features

    notYetIn-Game Wiki


    Simulation Features

    completeLocal Gravity Mode

    completeTime Dilation Simulation

    completeCompressible Gases Simulation


    Potential Features



    String Theory



    complete → Implemented

    inDev → In Development

    notYet → Not In Development


    Release Schedule

    A continuous integration system was introduced March 2020 to replace the old module release system. This was done because Cyens Toy is no longer in full time development, but still receives a few updates throughout the year. Now, any changes made to the source will be compiled and released automatically. 



    Cyens Toy could gain from additional developers. Join the Discord channel to talk about contributing to the mod!






    Reference Document



    Discord Server

    Cyens Toy Discord



    The Cyens Toy website can be found at



    Original: Skylark
    Official: @jacob1 @LBPHacker

    Mod by @firefreak11

    Thanks to @Michael238 for assisting in mod design
    Edited 91 times by firefreak11. Last: 19th Oct 2020
  • kobalt
    30th Jan 2018 Member 1 Permalink


  • phox
    30th Jan 2018 Member 0 Permalink

    this looks very nice, I can't wait for the modules!

  • Michael238
    30th Jan 2018 Member 0 Permalink

    A quick question. How does the time dilation work? Does it take both a particle's velocity and gravity into account, or is it only based on gravity?

  • firefreak11
    31st Jan 2018 Member 1 Permalink

    @Michael238 (View Post)

     It just simulates general relativity at the moment, so gravitation only. It requirer Newtonian gravity to work, and it slows down the frequency of the update function which controls its movement and reactions.

    31st Jan 2018 Member 1 Permalink

    I'd like to see evolution added. If that's possible. You were discussing this over IRC lastnight. I'll go to a friend's to check it out.

  • johnpears
    31st Jan 2018 Member 1 Permalink

    wow, that is so cool!

  • Michael238
    31st Jan 2018 Member 1 Permalink

    One thing that might be interesting to see with the quantum physics would be high energy photons such as x-rays or gamma rays. These would have effects such as ionizing atoms or splitting hydrocarbons into smaller fragments.

  • firefreak11
    31st Jan 2018 Member 0 Permalink


    @NUCLEAR_FOX (View Post)

     I have something in mind for that.


    @Michael238 (View Post)

     Good ideas! Will try something like this 

  • Michael238
    31st Jan 2018 Member 1 Permalink

    An additional effect could be electron-positron pair production if the photon energy is high enough.

Locked by LBPHacker: mod dead, don't bother