No change in size, 14:52, 20 December 2011
'''PK3''' is an alternate extension for {{wp|ZIP (file format)|ZIP files}}. This nomenclature was introduced by {{wp|Quake III Arena}}. However, contrarily to the PAK format used by [[Quake]] and [[Wikipedia:Quake II|Quake II]], PK3 is not its own format, but merely a naming trick to prevent the operating system from associating these files to with "virtual folders" or archiving software, and to avoid leading users to believe they have to extract the content to make the game work.
Several [[source port]] s have adopted support for using PK3 instead of, or in addition to, [[WAD]] files to distribute mods. But contrarily to unlike WAD files (which have standardized marker lumps such as P_START/P_END or F_START/F_END for various lump types), there are no cross-port standard standards for how data should be organized when placed in a PK3 file.
==Folder structure==
Doomer, editor, reviewer