Things You'll Need
Instructions
Minecraft Forge
Go to the Minecraft Forge download page (link in Resources).
Click "Installer" or "Src" next to your Minecraft version. As of this article̵7;s publication, the latest version is 1.6.2. If you don't know your version, load any Minecraft game, and then look in the top-left corner of the screen. You'll see the version number displayed there.
Click "Save File" to download Forge to your computer.
Navigate to the Minecraft folder on your computer. By default, you'll find this folder at C:\Users\username\AppData\Roaming\.Minecraft\Bin.
Double-click the "Minecraft.jar" folder in the Bin folder to open it with the extraction program on your computer, such as WinRAR or 7-zip.
Double-click the downloaded Forge folder to open it. Drag all of the Forge folder's contents into the extracted Minecraft.jar folder.
Delete the "META-INF" file in Minecraft.jar folder to complete Forge setup.
AtmosMobs Mod
Go to the AtmosMobs Mod download page (link in Resources).
Click "Download for AtmosMobs Mod," and then click "Download" on the next page.
Go to the folder C:\Users\username\AppData\Roaming\.Minecraft.
Double-click the downloaded AtmosMobs folder to open it, and then double-click "Put-in-Resources."
Copy all contents from the Put-in-Resources folder to "Resources" in your Minecraft folder.
Right-click the ZIP file in the Put-in-Mods folder, and then select "Copy."
Paste the ZIP file into "Mods" in your Minecraft folder. You do not need to extract the contents of this ZIP file.
Load any Minecraft game to play using the mod.