I want to make a game, but i don't know where to start. I want to know about old school game programming, what softwares they did use to make games like super mario bros. I want to program c++ but, i dont know what software is for making it. Tell me everything about making games and using c++ and stuff. I want to know!

As far as I recall Super Mario Bros wasn't written in C++, but 6502 assembly. I could never recommend anyone new to programming start with assembly. Even as a C++ programmer I don't even recommend it as a first language, however if you're set on C++ go for it.

If you want to start off with C++ then you'll need the following:

Visual Studio: https://www.visualstudio.com/

C++ Book such as C++ Primer: https://www.amazon.com/Primer-5th-Stanley-B-Lippman/dp/0321714113/ref=sr_1_1?s=books&ie=UTF8&qid=1524084751&sr=1-1&keywords=C%2B%2B+Primer 

Once you have the foundations down, you'll want to look towards either using a library, framework, or engine like Unreal.

You have many options:

SFML: https://www.sfml-dev.org/

SDL2: https://www.libsdl.org/download-2.0.php

Engines:

Unreal: https://www.unrealengine.com/en-US/what-is-unreal-engine-4

Panda3D: https://www.panda3d.org/

Urho3D: https://urho3d.github.io/

If your goal is to make retro games, you don't need any fancy 3D engines.

I'll leave others to recommend what they feel is appropriate.

How do i open urho? Which folder has the file i can use to open urho?

19 minutes ago, Toni Taika Rahkonen said:

How do i open urho? Which folder has the file i can use to open urho?

Follow these two guides:

https://urho3d.github.io/documentation/1.5/_building.html

https://github.com/urho3d/Urho3D/wiki/Setting-up-Urho3D-on-Windows-with-Visual-Studio