I just found this game engine called 3D Gamestudio vA7! It quite simply is a very good engine for all the beginners on this website. If you know c++ though I would look at better looking engines.
As the website says:
Beginner: Click together computer games from pre-assembled game templates. A simple action or car racing game can be built in a few hours this way.
Advanced: Do our tutorial and create commercial quality applications with the easy and effective lite-C scripting language. Use the included level and model editors to create the artwork for your project.
Professional: Include Gamestudio's engine into your software using your preferred language - C++, C#, or Delphi. Create levels and models in the FBX format with high-end editors such as MAX™ or MAYA™.