Plethora is a ComputerCraft peripheral provider for Minecraft 1.8.9+. It aims to provide both metadata and peripherals for vanilla Minecraft and most mainstream mods.

Plethora also adds a series of "modules" to the game. These modules can be used by the player with varying success. They really come in to their element when put in a manipulator, providing a series of methods which allow interacting with your environment. This includes:

Introspection: investigating the current player's inventory (and ender chest)
Scanner: scans blocks in an area, gathering metadata about them and allowing wrapping peripherals remotely
Sensor: scans entities in an area. Like the scanner this allows getting metadata and wrapping them as peripherals.
Frickin' laser beam. It fires lasers.

If you've ever wanted to embed a computer in your skull then today is your lucky day. Plethora provides a neural interface which can be attached to your head, or some unsuspecting animal or monster. Right clicking the entity with a neural controller allows you to interact with it. You can insert modules (which will be wrapped as peripherals) and manipulate them with the built-in computer. Building a cyborg army has never been so easy.

You can also add a kinetic augment to the neural interface. This allows controlling the host entity in various ways.

"Oh, cool ... OK, neat. OK, that's a thing".
- Direwolf20, 2019 in a tenuously related clip

Documentation

There is pretty comprehensive documentation on the Plethora website. This contains tutorials, explanations of several fundamental concepts and thoroughly explained examples.

You can also create a HTML dump of all methods by running the command /plethora dump out.html. When run in a single player world this will save a file in the active directory (normally .minecraft or your modpack's folder). This documentation is also available online.

Images

You know, I have one simple request. And that is to have ~~sharks~~ squid with frickin' laser beams attached to their heads!

Various modules available

Plethora Peripherals