Utilities
Name / PurposeRatingEngine
Steam Toolkit
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Collective Valve ERC Entity Documentation
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Search Valve Wiki through Sublime Text
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AMXModX
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VGUI Localization Tool
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Source Icon Set
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HL Editing Lite
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VMF Picker
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DuctTape
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HardOCP Benchmark
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VPK Context Menu
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Half-life Advanced Effects (HLAE)
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Ear Defender
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Source Multi Tool
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HL2 Hud Editor
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KV File Generator (Online Tool)
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vguilocalizationtool
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Rufio's SDK GUI
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Demo freak
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Source SDK Gadget
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Steam Utils
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BRET (Bsp REs Tool)
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Fixed Steam HD Pack for Half-Life
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VTF shell extensions
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Demo Cleaner
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PSI
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Source Shader Editor
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Source VM
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GCF Scape
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Nightfire Editor Suite 2
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Game Extractor
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Source360
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GMadConv
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Valve Icon Pack
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Animation timing tools
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HL Mod Launcher
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Demo File Renamer
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Sourceless
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Let's make a RES
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Half-Life CGShader
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PiLauncher
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sharpmod
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CTX Converter
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cf sdktools
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PakScape
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Sourcemod
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FGD SublimeText Highlighter
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Gelendra
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Pakrat
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FLRGen
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Error Checker
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Hl2 Model List
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MAGX's Tools
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Sublime-VDF-Languages
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NPP Valve Definition file
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Res Generator
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Sassilization Inline Patcher
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PAK Explorer
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GUI Debug options for HL2DM
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CCConverter
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VPK tool (for OS X)
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Demo.JS
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VoglPerf
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PackBSP
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Vogl
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ATI hammer fix
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OmniToolz
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Captioneer
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HL2 Utils
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TM GCF Extractor
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Content Installer Multi game
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Updated Half-Life Dlls
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Source Script
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Source Engine Automatic Demo Saver (SEADS)
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3DRipperDX
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hllib
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WebGL Source Engine Renderer
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Particle benchmark
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VDF Parsing library
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BSPIN
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Half-Life Launch Pad
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VMPI by TopphattWaffle
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Alura & Zoe for Nightfire
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HL Tools
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Mod Maker
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Map loader for hl2
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Steam File Manager
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Gold Wave
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uSource
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GCF Extractor
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TGA Thumbnail Plugin (Thumbplug)
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Cue List Tool
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BZIP2
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OpenVR
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Custom Content Manager
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VconsoleLib
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HL2 Toolkit
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GMad Extractor
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VGUI.JS
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Half-Life Mod Folder Creation Tool (modtool)
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Gibbeds VPK Extractor + Fixed Version
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Blaster
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Cached.wad and gfx.wad SDK
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WC Parser
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STEAM Source Mod Manager
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VICE
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Lawena Recording Tool
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VIDE
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Source CMD
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BZIP2 tool
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netdecode
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Source Sauce
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SrcDemo2
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Phoneme Extractor
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Custom Compiler GUI
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ToGL
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GMOD LUA IDE
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Worldcraft Color Editor
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QWERTY Hammer Kit
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Source Icon Pack
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Nightfire Workshop
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GOLDSRC2SOURCE - Map Fixer (v1.1.0)
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Source SDK Launcher for Portal
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Source Game Starter
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ResGen
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Wavosaur
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Steam Condenser
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