You press a button and a character jumps on screen. Simple, right? What happens between that button press and that jump is anything but.
Most people experience gaming as a finished product. You buy a game, play it, it works. But underneath every frame of animation, every explosion, every dodge roll, there’s a stack of technology that would have seemed like science fiction 20 years ago.
This isn’t a technical deep-dive for engineers. It’s a plain-English tour of the technology that makes modern gaming possible.
Emulation: old games, new hardware
Emulation makes one piece of hardware behave like another. An emulator on your PC pretends to be an old console and runs the original game software as it would have on the real hardware.
This is how Nintendo Switch Online gives subscribers NES, SNES, and Game Boy libraries. It’s also how millions play retro games on phones and laptops.
The challenge is accuracy. Emulators interpret original hardware behaviour, and the interpretation isn’t always perfect. Some games have timing quirks or audio effects that only work correctly on original chips. For most people, unnoticeable. For purists, it matters.
FPGA: the hardware purist’s answer
FPGA stands for Field-Programmable Gate Array. In plain English: a chip that can be programmed to physically replicate another chip’s circuitry.
Where an emulator uses software to interpret what old hardware did, an FPGA device recreates the actual hardware at a circuit level. The game isn’t interpreted. It’s running on what is, functionally, the original console’s processor on a modern chip.
The Analogue Pocket is the best-known consumer FPGA device. It plays original Game Boy cartridges with pixel-perfect accuracy on a gorgeous modern screen. The MiSTer project, an open-source FPGA platform, can replicate dozens of systems from the Atari 2600 to the PlayStation.
It’s the difference between a photograph of a painting and a perfect replica on a new canvas.
Cloud gaming: no console required
Cloud gaming runs the game on a powerful server elsewhere and streams the video to your device in real time. Your inputs travel to the server, the game processes them, and the result streams back.
Xbox Cloud Gaming, NVIDIA GeForce Now, and PlayStation’s cloud options let you play demanding games on a phone or basic laptop.
The catch is latency. You need a stable, low-latency connection: at least 15-20 Mbps, ideally wired ethernet or strong Wi-Fi 6. On congested Wi-Fi across the house from the router, the experience suffers.
Retro games, with small file sizes and minimal latency needs, are actually ideal for cloud gaming. They load instantly and feel responsive even on modest connections. Geektown’s 2026 analysis noted this is why retro titles feature prominently on cloud platforms.
Ray tracing: teaching computers to see light
Traditional game graphics use shortcuts to fake light. Shadows are pre-calculated. Reflections are approximate.
Ray tracing traces individual light rays as they bounce off surfaces, pass through materials, and interact with the environment. The result: reflections that actually reflect the scene, shadows that behave naturally, and lighting that feels real rather than manufactured.
It’s computationally expensive, only practical in recent years as graphics processors became powerful enough. But when done well, the improvement is striking. Puddles reflecting neon signs. Glass refracting the world behind it. Sunlight filtering through trees exactly as it would in real life.
The indie revolution
Not every game needs ray tracing. Some of the most acclaimed recent games use pixel art, chiptune soundtracks, and mechanics from the 8-bit and 16-bit eras.
These aren’t lazy throwbacks. They’re a creative choice. Indie developers use retro constraints as a design philosophy: tight gameplay, clear visuals, immediate engagement. The tools are modern (Unity, Godot, digital distribution), but the sensibility reaches back to an era when every pixel earned its place.
This intersection keeps retro gaming perpetually relevant. It’s not a museum. It’s an active creative influence.
Play your way
Whether you’re streaming to your phone, playing a cartridge on an Analogue Pocket, admiring ray-traced reflections, or discovering a brilliant pixel-art indie game, gaming tech has never been more varied or accessible.
Want to set up a gaming rig, optimise your network for cloud gaming, or connect retro hardware to a modern display? That’s our jam. Dial a Nerd lives for this stuff. Give us a call and we’ll build the setup that matches how you want to play.
