Reddit mentions of SunFounder 37 Modules Sensor Kit V2.0 for Raspberry Pi 4B 3 Model B+ 3B 2B B+ A+ Zero, GPIO Extension Board Jump Wires

It's a mini computer chip, similar to an arduino. Think of a computer's motherboard, except it has everything you need other than storage already built into it. (Processor, graphics, HDMI, RAM, Wifi on the newer models, ethernet, USBs, audio jack, etc.) All you have to do is plug in a microUSB for power, and a microSD for storage (it's "harddrive"). After that you can do whatever you want with it. It has pins that you can connect other things to it, you could write your own software do what a number of different things. They also make modules for it that can do pretty much anything, touchscreens, cameras, sensors, etc. Some Examples

Recently I built one as a media box to run Kodi (XBMC) and installed hyperion to create an ambilight for my TV. Similar to this

But as others have said, you could turn it into an emulator box or literally anything you would need a "computer" to run. This guy turned an old gameboy into an emulator

Are you looking for something that he can physically build which involves soldering, and using wiring diagrams, or simply for software/programming/gaming?

If you want to bundle in the hardware project side, this just about covers everything else, but you need to have a raspberry pi with a power supply, and micro sd card.

I got my Pi with the sensor kit from sunfounder there are other kits that are cheaper, but this in particular is pretty nice. Also the robotics car is a nice package

Just search for Soldering kits on Amazon, there are many. One feature you want is to be able to adjust the soldering iron's heat level. (Example: https://www.amazon.com/Sywon-Soldering-Adjustable-Temperature-Desoldering/dp/B01E1ISGH0/ref=sr_1_6?s=hi&ie=UTF8&qid=1482397099&sr=1-6&keywords=Soldering+Kit)

YouTube has TONS of soldering videos. (Example: https://www.youtube.com/watch?v=BxASFu19bLU).

You also might want to look into some of the more elaborate Raspberry Pi kits, they typically come with a bread board for circuit prototyping as well as a bunch of extra goodies like a Pi Camera module, Arduino boards, etc... (Example: https://www.amazon.com/SunFounder-Modules-Sensor-Raspberry-Extension/dp/B014PF05ZA/ref=sr_1_13?s=pc&ie=UTF8&qid=1482396929&sr=1-13&keywords=Raspberry+Pi+3)

With such a kit, you'll be able to explore a ton of the Pi's functionality.

I started with this sensor kit: https://www.amazon.com/SunFounder-Modules-Sensor-Raspberry-Extension/dp/B014PF05ZA/ref=pd_sim_147_5?_encoding=UTF8&psc=1&refRID=TC6C0KCEM33KW1E6HMXN

But you can get most if not all of those sensors for cheaper through different vendors on amazon. It is just what I started with. I liked the kit because it came with the book and showed you how to get started with each of the sensors in an easy way. The sensors it comes with are pretty much the bottom of the barrel for sensitivity, but they are good enough for learning with.

A couple more:

https://smile.amazon.com/Kuman-Project-Complete-Starter-breadboard/dp/B016D5KUHS/ref=sr_1_1 (contains UNO R3)

https://smile.amazon.com/SunFounder-Modules-Sensor-Raspberry-Extension/dp/B014PF05ZA/ref=sr_1_5

No opinion on their respective quality or value - just passing along the links.

Nice thanks crispychoc. Hadn't seen the GrovePi+ kit yet, so checking that out.

Been checking out the SunFounder 37 Modules Sensor Kit V2.O (https://www.amazon.com/SunFounder-Modules-Sensor-Raspberry-Extension/dp/B014PF05ZA).

Anyone know anything about that or any other "37 sensors and module" kits that are on Amazon? Prices are all over the place on those things.