How long will it take to build a simple 2D Game Engine? — Harold

Guide for creating a 2D game : r/rpginabox

How to write a 2D game engine - Quora

How does the Game Engine Loop make a game possible? — Harold Serrano - Game Engine Developer

QR Codes For Small Business a Winter Haven Chamber Presentation

game engine — Blog - Harold Serrano

How long will it take to build a simple 2D Game Engine? — Harold Serrano - Game Engine Developer

Best 2D Game Engines: The Complete List (2020) - Thomas Gervraud

How long would it take for one person to build a simple game engine? - Quora

How to Make Your Own C++ Game Engine / Habr

How to write a 2D game engine - Quora

What tools do I need to develop a game engine? — Harold Serrano - Game Engine Developer

I Made a 2D GAME ENGINE in 30 HOURS! (again) From Scratch in C++

Why should you care about optimizing UI for mobile games?, by Stéfano Girardelli, Wildlife Studios Tech Blog