Hi nice people
If you have free game or not commercial game you can include this fx from Bigwings, ST
Here the credit and licence term ;
// Heartfelt - by Martijn Steinrucken aka BigWings - 2017
// countfrolic@gmail.com
// License Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Demo without parameters : http://gigatron3k.free.fr/html5/C2/FX/rain/
fx file : http://gigatron3k.free.fr/html5/C2/FX/rain.rar
Regards