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Portable Minecraft (Minecraft on your USB key)

September 2015

This article discusses some tricks for playing Minecraft. The tricks will only work on an original version, not a pirated one. Minecraft is inexpensive and DRM-free. You can keep a portable version of it on your USB key. To run the game without an internet connection, you must have Java installed on your system. The user is also required to play the game at least once online to enable Minecraft to download the files. It is stated that although the portable use of Java may be possible, this function has not yet been tested.

Note: This trick is only valid if you purchased the original Minecraft game. You must have played the game online at least once to enable Minecraft to download its files.

Here's how to have a portable version of Minecraft. It will allow you to carry your game on a USB key and you will be able to play without an internet connection.

Note that: Java must be installed on the host computers for you to play your game.

You must have played the game online at least once for Minecraft to download its files.

Create the following directories:
  • minecraft
  • minecraft\bin
  • minecraft\data


Copy Minecraft.exe in minecraft\bin
Copy your .minecraft directory in minecraft\data

Your .minecraft directory contains these words, and is located in your user profile (c:\Users\yourlogin\AppData\Roaming\ under Vista, or C:\Documents and Settings\yourlogin\Application Data\ under Windows XP).

Then create portable_minecraft.bat file, containing the following instructions:

set APPDATA=%CD%\data          
bin\minecraft.exe


Then, simply double-click portable_minecraft.bat to play the game!


Note:
  • Altering the APPDATA environment variable does not touch the system APPDATA. This change will only affect programmes launched from the bat file. It will not change your system settings.
  • Minecraft makes a lot of disk writes, which may be slow on USB keys. The game may freeze from time to time. For a better performance, unzip to HD, play on HD, then zip back to USB.
  • It may be possible to use Portable Java, but this has not been tested.


Several versions have been added to the game. A Survival mode has been added and an Adventure mode is in the process of being added. Those who have already bought the game can access the in-development version known as Beta.

Original FAQ by sebsauvage on CCM
For unlimited offline reading, you can download this article for free in PDF format:
Portable-minecraft-minecraft-on-your-usb-key.pdf

See also

Hacer portable Minecraft (o llevarlo en una memoria USB)
By Carlos-vialfa on September 27, 2010
Portable Minecraft (Minecraft sur clé USB)
By sebsauvage on September 26, 2010
Minecraft portátil (Minecraft no pen drive)
By pintuda on September 27, 2010
Original article published by sebsauvage. Translated by jak58. - Latest update by Jeff
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