I've created a small cmd script that may help diagnose this:
https://drive.google.com/file/d/1XbtZ__o1gu50nSaMqCI9fmq8ubZVZyKz/view?usp=shari...
Download this file and place it in the folder with CosmobreederYiffai.exe, then double click it to run. This will attempt to launch the game while displaying a console window.
Let me know if the game runs or not using this script and what, if any, error messages are printed to the console.
Thank you, I tried it but it still does not run. This is what displayed in the console window:
E:\f\cosmobreeder-2021-8-7-c8506f23d-substar-public>cd E:\f\cosmobreeder-2021-8-7-c8506f23d-substar-public\\content\17b23443bec\
E:\f\cosmobreeder-2021-8-7-c8506f23d-substar-public\content\17b23443bec>..\..\jre\bin\java.exe -jar cosmobreeder-multi.jar ..\..\
Exception in thread "LWJGL Application" PRG.YX: OpenGL is not supported by the video driver.
at PRG.Wr.a(PRG:387)
at PRG.Wr.k(PRG:265)
at PRG.Wh.c(PRG:145)
at PRG.Wi.run(PRG:127)
Caused by: org.lwjgl.LWJGLException: Pixel format not accelerated
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(PRG:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(PRG:247)
at org.lwjgl.opengl.Display.createWindow(PRG:306)
at org.lwjgl.opengl.Display.create(PRG:848)
at org.lwjgl.opengl.Display.create(PRG:757)
at PRG.Wr.a(PRG:378)
... 3 more
E:\f\cosmobreeder-2021-8-7-c8506f23d-substar-public\content\17b23443bec>cmd /k
E:\f\cosmobreeder-2021-8-7-c8506f23d-substar-public\content\17b23443bec>
The error ("Pixel format not accelerated") is typically caused due to either your GPU not having OpenGL compatibility or, more likely, a problem with the video drivers.
What kind of GPU is installed on your system? If it's a relatively recent one, make sure that its drivers are installed and up to date.
If you have an Intel HD Graphics 2000 or 3000, you may have some difficulty getting the drivers installed on Windows 10. Intel has not shipped any official drivers for these parts.
A post on Intel's support forum suggests that you may be able to install the version for windows 8.1 and earlier:
community.intel.com/t5/Graphics/Intel-HD-Graphics-Driver-2000-3000-for-Windows-10/m-p/343553#M21778
