Hey! Peek at my title on the left there, I know all about this!
I started making games waaay back in 4th grade using Scratch:
https://scratch.mit.edu/
It's really primitive and meant for kids, but if you want to give it a go, it's very very very simple to pick up and quickly put together something in. If you want something a bit more advanced, try Stencyl:
http://www.stencyl.com/
Stencyl is much more advanced, but still has the basic concept of drag-n'-drop scripting, which is helpful starting out.
As
@McWhiters9511 above me said, Game Maker Studio might also be an option to try, although I personally have never used it.
There is, of course, the RPG Maker series, which allow you to quickly piece together a traditional RPG:
http://www.rpgmakerweb.com/
Using RUBY, you can add custom code, too. Games like
To The Moon were developed using RPG Maker. You might also consider that a starting place.
Since you already know some programming, you have a solid foundation. Below are some textbooks that I own that I recommend you pick up for more on game design in particular, or some advanced concepts.
I'm currently working through this textbook right now, give it a try:
https://www.amazon.com/Introduction...on+to+game+design+prototyping+and+development
It'll guide you through game prototyping and development in Unity using C#. I think this'll be a good starting point. The book goes through game design basics to start with (helpful!), then moves into prototyping in Unity, which is a great way to get some hands-on experience in building game levels. It also walks you through C# if you're not familiar with it, so don't worry about having to know it going in.
I focus more on the game design aspect of game development, so I have some game design books I can recommend too. These two are really good:
https://www.amazon.com/Art-Game-Des...407408&sr=1-1&keywords=the+art+of+game+design
https://www.amazon.com/Game-Design-...97407421&sr=1-1&keywords=game+design+workshop
The first one is probably the best book on game design I've found. Amazing read and great reference guide for future game projects. I highly recommend his "Deck of Lenses" that accompanies the book (sold separately).
The second one is a good series of excercises that can help you improve your game design skills.
Feel free to PM me if you have any questions! I can help