



Folders Folders can be loaded directly by ZDoom, as if they were a ZIP or 7z file. However, keep in mind that decompression is quite a bit slower than ZIP files, so loading times are increased, including during run-time when, for instance, new sounds are loaded. A possibility would be to develop a mod as a ZIP file, then convert it to a 7z once finished, to decrease the size of the archive to be distributed. This format offers a much better compression ratio, but it also increases the memory footprint on the engine, so caution must be taken when choosing between the 7z and ZIP format. 7z file used as the container for a ZDoom mod is usually given the. This partial implementation also affects some editing tools which normally support the PK3 format, such as (GZ) Doom Builder and SLADE. Note that many ZIP utilities only partially implement the ZIP standard and as a result their support is limited to "store" and "DEFLATE" files. ZDoom supports several ZIP archiving methods: stored (no compression), shrunk, imploded, deflated (the most commonly used), bzip2 and LZMA algorithms. While there is no technical difference, this helps avoid potential confusion from users thinking the mod should be extracted from it, and also prevents Windows from presenting it as a directory. pk3 extension (originally used by Quake 3,). zip file used as the container for a ZDoom mod is usually given either the. ZDoom allows using several compressed archive formats instead of the traditional WADs. The PK3 file format is the same as the ZIP file format, and is treated exactly the same by ZDoom. For more information on this article, visit the PK3 page on the Doom Wiki.
