005 (created by 005) is a decompiler for most BSP formats. Support may vary between engines. Also supports outputing to many different map editor file...
Half-Life Unified SDK Map Decompiler by SamVanheer - is a powerful tool used to decompile Half-Life 1 BSP version 29 and 30 files. It stands out from...
MBSPC which is a cmd map decompiler for Goldsource games, written in C++. It converts BSP files into sources AAS and MAP ones that can be loaded in Hammer...
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