Hi everyone.

I wanted to ask what do you think is the best software to create particles for 2D games, for example a space shooter.

They all work the same.

If you want a good all-round tool go with Blender 3D modeling software, it can make any particles effects if you know the basics, it's a lot more versatile and can do a lot of effects that the others can't.

Even just knowing how software like Gimp or Photoshop will help you when doing particles in Blender.

If you are new to particles and just don't want to spend a long time learning, just pick any one of the hundreds of particle creators out there on the internet. Particle software is all the same and there is no "Best" one. Just check that it can export into a image format that you can use and that it supports multiple emitters.