Every Game Engine Explained in 10 Minutes

GTA 6 runs on an engine Rockstar has never sold to anyone. Here is that engine, and three more that built almost every game you have played. RAGE, Unreal Engine 5, Unity and Source 2 — four game engines, four completely different ideas about what actually matters. They decide how the world loads, how light bounces, how a body falls down a staircase, and whether the game ships at all or dies in development hell. Most people have never thought about them for a single second. This is Part 1 of the Game Engines Explained series. Five more are coming in Part 2, including the engine that shipped a game no computer on earth could run, and the one that has been quietly running Doom on pregnancy tests for thirty years. ⏱ CHAPTERS 0:00 Intro — What a game engine actually is 0:44 RAGE — The GTA 6 engine Rockstar will never sell you 3:08 Unreal Engine 5 — Nanite, Lumen and the stutter problem 5:27 Unity — The fee that broke developer trust 7:41 Source 2 — The stolen code and the gravity gun 9:29 Part 2 preview 📌 IN THIS VIDEO Why GTA 6 needs an SSD, and what happens four seconds ahead of your car What Euphoria actually is, and why nobody animated those deaths Why Rockstar builds its own engine when almost nobody else does Nanite and Lumen explained without the marketing language Why The Mandalorian was filmed inside a game engine What Unity's 2023 runtime fee really cost them The 2003 Half-Life 2 source code theft, and Valve's fake job offer 💬 Which of these four surprised you most? Tell me in the comments. 👍 If you enjoyed the video, leave a like — it helps the algorithm push this video to more people. 🔔 Subscribe to SketchyTech for fast, no-fluff tech explainers with questionable drawings. 🎮 MORE GAME ENGINES IN PART 2 Five more game engines are coming. Which engine should I explain next? Tell me in the comments! ⚠️ DISCLAIMER This video is made for educational and entertainment purposes. All trademarks, logos and game footage references belong to their respective owners. #GTA6 #GameEngine #UnrealEngine5 #Unity #TechExplained