# Saving a simulation

**URL:** <https://get-help.theconstruct.ai/t/saving-a-simulation/11625>\
**Category:** General Support\
**Created:** [August 3, 2021, 11:39pm UTC](https://get-help.theconstruct.ai/t/saving-a-simulation/11625 "2021-08-03T23:39:42Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![tnkumar](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/t/278dde/32.png) [@tnkumar](https://get-help.theconstruct.ai/u/tnkumar)\
**Post date:** [August 3, 2021, 11:39pm UTC](https://get-help.theconstruct.ai/t/saving-a-simulation/11625/1 "2021-08-03T23:39:42Z")

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![image](https://get-help.robotigniteacademy.com/uploads/default/original/2X/1/148bd0a493b8d13bd3226c9e25e93fe86fbf97f4.jpeg)

Instead of creating a world with sdf and robots using urdf, I am able to open a simulation, specify a robot and a world (though limited options are available.

Subsequently, I see many options to insert objects into this simulation.

Can this simulation be saved as a rosject?  
Next time, I open the rosject, I would like to be able to create the simulation automatically.

Is this possible?

 ![image](https://get-help.robotigniteacademy.com/uploads/default/original/2X/f/f74aaafa4b5814b5c4488e60698591c5b1b9312d.png)  
These are the GAZEBO environmental variables in the system. Does that help to answer this question?

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**Author:** ![albertoezquerro](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/albertoezquerro/32/7031_2.png) [@albertoezquerro](https://get-help.theconstruct.ai/u/albertoezquerro)\
**Post date:** [August 4, 2021, 8:19am UTC](https://get-help.theconstruct.ai/t/saving-a-simulation/11625/2 "2021-08-04T08:19:07Z")

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Hello @tnkumar ,

You can save the world file in `File->Save World`.

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**Author:** ![tnkumar](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/t/278dde/32.png) [@tnkumar](https://get-help.theconstruct.ai/u/tnkumar)\
**Post date:** [August 4, 2021, 6:13pm UTC](https://get-help.theconstruct.ai/t/saving-a-simulation/11625/3 "2021-08-04T18:13:08Z")

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Thanks. That worked.  
There is no File-\> Open World in the menu.  
What is the procedure for opening the world again?

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**Author:** ![albertoezquerro](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/albertoezquerro/32/7031_2.png) [@albertoezquerro](https://get-help.theconstruct.ai/u/albertoezquerro)\
**Post date:** [August 5, 2021, 7:50am UTC](https://get-help.theconstruct.ai/t/saving-a-simulation/11625/4 "2021-08-05T07:50:26Z")

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You can run the command:

`gazebo <world_file_name>`

or alternatively, start your world using a launch file: [Gazebo : Tutorial : Using roslaunch](http://gazebosim.org/tutorials?tut=ros_roslaunch)

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**Author:** ![system](https://get-help.theconstruct.ai/uploads/default/original/2X/9/9d3ce8305cc0d0d9b6e07d15767a6f245c526f1b.jpeg) [@system](https://get-help.theconstruct.ai/u/system)\
**Post date:** [August 15, 2021, 7:50am UTC](https://get-help.theconstruct.ai/t/saving-a-simulation/11625/5 "2021-08-15T07:50:49Z")

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