QKAS

You can vist QKAS's official website here

QKAS was made in 2015 by a user simply known as "Prince". The idea of QKAS (Pronounced Kaz) is simple. Be as simple as possible. Although it only uses two main characters ("+" and "-") you can use all other character excluding letters normally.

Here's how it works, each "-" or "+" is equal to +1 to the right on the letter section of a QWERTY keyboard (Remember, the + and - only are for letters). For instance, q being the first letter on the qwerty keyboard is equal to "-". w is equal to "--", e is equal to "---", r is equal to "" and so on. The same is with the uppercase letters, except you use "+" instead of "-". So Q is equal to "+" and W is equal to "++". Hopefully you get it by now, if you don't the read it again. There is one more thing you must know, ALL punctuation stays the same. If you wanted to say Hi! You'd type "++++++++++++++++o!" (o is the separator)

The first encoder was made by a user known as "_MysteriousMagenta_" and the first decoder was made by "Prince" himself (Although the it was very bad).

Examples
Here is the "Hello, World!" program in QKAS:

++++++++++++++++o---o---o---o-o,o o++o-oo---o-o!

Here is the "Hello, World!" program in Brainfuck:

++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.--..>>+.>++.

As you can see, it is simpler but longer.

Here is the "Hello, World!" program in Python2:

print "Hello, World!"

And in Python3:

print("Hello, World!")