MineOffline is a program designed for Windows users that allows you to play Minecraft in offline mode with your own customized experience. It uses Minecraft.exe to download Minecraft files for you (after you log in with an account), and lets you use a custom username for joining servers in offline mode. The ability for custom skins (and capes!) is coming soon.
MineOffline is written in BATCH and designed for Windows XP/Vista/7/8 users (both 32- and 64-bit operating systems). The Vivid Dev Team hopes to develop an OS X and Linux application soon after the GUI of MineOffline.exe is finished.
We do not own Minecraft files, nor are we allowed to distribute Minecraft files, and do not plan to. But, for the "Log In and Download" feature to work, you must include Minecraft.exe in the same folder as MineOffline.exe. We leave you to do that yourself.
This program was developed by Ethan Vrazel (Methos319) and Wasim Sandhu (PeacemakerDawg). The OS X application will be developed by William Smillie (C1D3R). Development on Linux application is in progress.