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BEE2 is a program that allows you to customize the Portal 2 Puzzlemaker/Perpetual Testing Initiative. and the levels made with it by adding new styles, voicelines, puzzle elements and etc.


BEE2 went into beta on the 27th of May, 2015 and was officially released on the 9th of December, 2018 dubbed as BEE2 4.32.0.


With BEE2 you can modify the standard PETI (and it's levels) in several ways, including but not limited to.

  • Add new items to the PETI palette.
  • Choose the video that plays at the start and end of the level.
  • Choose the voicelines, more specifically, choose what character's voicelines will play during the test.
  • Choose the style (Overgrown, Clean, P1 style, etc.)
  • Choose the skybox.
  • Choose the music.

And so on and so forth.

What BEE2 looks like.


You can download BEE2 from the github release page.


ViewDiscussEdit template Source Third Party Source SDK tools
Mod tools DuctTape • VIDE VIDEXBLAH's Modding Tool XBLAH's Modding Tool
Map editors Hammer++ Hammer++
Map compilers Batch Compile Tool Batch Compile Tool • Batch Compiler Batch Compiler • Compile Pal Compile Pal • CSTBSP • CSTRAD • CSTVIS • Hazard Team Compile Tool Hazard Team Compile Tool • VBSP_h4xed
Map converters BSPSource BSPSource • 005 Decompiler 005 DecompilerMapFool • VMEX
Map tools AutoBSPpackingTool • BSP Viewer → Crafty • EntEd • Entspy • Map Analyst • Material Enumerator • Map Obfuscator • Pakrat • Source Compile Analyzer • TAR • TeamSpen's Hammer Addons TeamSpen's Hammer Addons • Vgroup • WinBSPZip
Model compilers GUIStudioMDL • Source Model Compiler
Model converters Crowbar Crowbar • FireSoft Half-Life MDL Converter • FireSoft MS3D to SMD converter • MDLDecompiler • Propper • Studiocompiler • VMF to SMD
Model tools 3Dcoat • 3DS Max • Blender Blender • Cinema 4D • fragMOTION • GMax • HLMV++ HLMV++ • kHED • Lightwave • Maya • MilkShape 3D • Modo • SourceOps • VSIF2VCD • Wings3D • XSI Mod Tool • Zbrush
Displacement tools DispGen • Twister • Worldmachine
Particle converters Sparc
Texture converters 360g • FixVTF • no_vtf • TGAtoDUDV • VTF Creator • VTFVer
Texture tools Adobe Photoshop Adobe PhotoshopGIMP GIMP • HL2Tex • Sign Maker • Sky Writer • Source model skin editor • Terragen • VMT Editor • VTF Explorer • VTF Shell Extensions • VTFCmd • VTFEdit VTFEditVTFEdit Reloaded VTFEdit Reloaded • VTFTool
Sound tools L4D2 Sound Mod Creator
VPK tools GCFScape GCFScape • Gibbed’s VPK Extractor • Source 2 Viewer Source 2 Viewer • VPKEdit VPKEdit
Libraries AVIKit • HLLib • VectorLib • VTFLib • VPKEdit VPKEdit
Plugins 3DSMax tools • 3DSMax VTF • Blender Source Tools Blender Source Tools • Blender VertexLitGeneric • MESA • Notepad++ VDF languages • Photoshop VTF • SourceIO • SourceMod • Wall Worm Model Tools
Other BEE2 • CtxConverter • Custom Compiler GUI • sis_ico.png Source Icon Set • Source SDK Windows Gadget • SteamCMDui • VGUI Localization Tool • VirtualDub