Ezyo1000 there is also a Windows version of Affinity Photo as well as it's sister app Affinity Designer!
I have not used Affinity Designer yet but I do have it on my computer for future video game making!
Keep this in mind as far as budget goes... Yes, you can wear Chuck Taylor Converse gym shoes on the basketball court but it is generally better to make the Footlocker investment and get the proper gear for your bunions not to swell up so much!
I have various software used by industry professionals because at some point you have to legitimately compete with your upper class peers... Master Artist Mshindo told me that BTW!
Eventually you will be required to make some sort of investment unless it's just a hobby...
There is of course open source (free) software like Blender...
https://www.blender.org
Or if you are really feeling high tech you could download Unreal which was used for the Batman Arkham game as well as Vader Immortal...
https://www.unrealengine.com/en-US/
Unreal is free until you start making money and then you owe a 5% royalty off what you earned!
I recommend using student versions of most software to test if you like and then purchase later according to the project budget!
Before we derail the thread any further I'll list my most used software...
Zbrush
Lightwave
Marvelous Designer
Substance Painter
Flame Painter
Amberlight
Affinity Photo
Photoshop
Apple Motion
And a gang of plugins too many to name...