Programs for mods

[barbaramarcial]

What programs are used to make mods? I wanted to start learning about it...

[Gargamel]

Question moved to Mod Development Help. 

[HebaruSan]

Different programs for different kinds of mods.

Do you want to make new parts?

Do you want to make new planets?

Do you want to change how things behave?

[barbaramarcial]

26 minutes ago, HebaruSan said:

Different programs for different kinds of mods.

Do you want to make new parts?

Do you want to make new planets?

Do you want to change how things behave?

Thanks for your answer!

I wanted to add new missions and something related to robotics. Like for example adding more items to make a new mission in the system ..

[HebaruSan]

1 hour ago, barbaramarcial said:

I wanted to add new missions

As far as I know, the Mission Builder from the Making History DLC is the way to edit missions.

1 hour ago, barbaramarcial said:

and something related to robotics. Like for example adding more items to make a new mission in the system ..

If you mean that you want to create new robot arms or other robotics-related things that the user could attach to crafts, that would fall under part creation: