Hi, I’d like to make an online trading card game. Could you give me some help with links? I need some tutorials related to such subject. Thanks in advance 
Do you know how to use arrays?
Yes. You mean that I could use them as the card deck?
There is quite a bit of c# code around for managing card decks - e.g. http://deckofcards.codeplex.com/
If you are already confortable in coding c#, I’d start there.
Thank you very much. I have no doubts it would be very helpful. Could you also give me a hand with 2D games in Unity, some advices about making graphics (because I’m a total newbie in this subject but I’ll have to make graphics by myself) ? Like links to some tutorials? I’ve seen 1 or 2 but they weren’t satisfying
Here’s some better advice - prototype with a hardcopy prototype first.
Creating art for a card game is probably the easiest thing to do. Creating a card game with engaging mechanics however is a touch different.
To get around that, get some standard index cards, and take the concept of a game you like. Then, create a list of two things:
A) Things you would change.
B) Things you wouldn’t dare touch.
Create your prototypes around those, and get your friends to playtest. This is the important part because they will shed light on aspects of the play experience that you probably couldn’t have thought of yourself.
I would only suggest creating the digital form of your card game after it sufficiently passes the Real People Test. As others have said, creating a card game is probably the easiest type of game to create in an engine like Unity, but if your mechanics are bad, you will probably be instantly dismissed. Don’t let game-dismissal happen to you!
Yeah I know that the game mechanics it difficult, but I think I can handle it. The thing I need help with is making 2D games in Unity
Anyone?