Hello. My name is Felipe Lopes Zem. You may find me elsewhere under the aliases Zem, Zem1991, or ZemMaster.
Here is my portfolio, my display of all what I've learned through years of messing around with game engines and reading about game design in general. Those are indeed the best projects I have available to be shown, although I do have many others from participations at Game Jams or just as gameplay concepts stored in github repositories.
In case you want to see more of what I've made before, here are some links that can help you with that: