game-editor.com

hello
i'm new to this great software.
i'd like to create a very simple game (with no code if possible)
like in the picture (attched piece)
the space ship goes left and right and shoot bullets
the aliens attacks the ship by colliding it.
-- after that maybe adding "hit" message and sounds.
that's all.

Welcome to the site!

A great place to start is the Space Invader tutorial (Help -> Demo making of -> Space Invaders).

This isn't possible. Unless You want to use mouse'drag' button to move your character. Maybe I'll try and get you a demo but

game made without codes are not usually good

Well here is a demo with no code but try to get used to coding

+1 on the fact that you need code. I've tried for a couple months to do something half decent without it, but it turned out to be crap no matter what I was doing.
SO, now I'm trying to learn about C# and Unity so that I can try to do someting better... and it's harder than I thought! At least I'm better with a graphic tablet so I've drawn most of my sprites and other graphical assets

@ WalkerHS30 Small steps count!
I agree that it will be hard to do without code. Learning how to code can be hard too, but you'll probably like the results much more!