Hammer and Modding

General discussion and help forum for all things Portal 2 Hammer mapping, modeling and modding. Post screen shots of your upcoming Portal 2 maps or ask for help about mapping for Portal 2, but be sure to read the useful stickies!

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Forum Rules and Important Info - Read Before Posting!
by msleeper · Jan 19, 2026
2 Replies · 339 Views
Last post by msleeper
Jan 19, 2026
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Hammer Sticky Reference Thread
by msleeper · Feb 02, 2026
0 Replies · 122 Views
No replies
Topics
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Adding custom Voicelines
by CraftyTV · Mar 16, 2026
1 Replies · 82 Views
Last post by CraftyTV
Mar 16, 2026
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Where to get death fizzler materials?
by Tiny Desk Engineer · Mar 03, 2026
1 Replies · 75 Views
Last post by Tiny Desk Engineer
Mar 03, 2026
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How do i fix this?
by Millenium2001 · Feb 21, 2026
1 Replies · 84 Views
Last post by Millenium2001
Feb 21, 2026
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The ThinkingWithPortals Map Showcasing Thread
by WinstonSmith · Jun 27, 2011
2,565 Replies · 645,396 Views
Last post by vrad.exe
Nov 21, 2025
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Voices Cut Off Early in Portal 2 Dubbing
by MateuszWis93 · Jul 27, 2024
1 Replies · 2,025 Views
Last post by nata17niel
Jul 16, 2025
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Edit an old map without p2c file.
by Jack Schitt · May 02, 2025
0 Replies · 2,005 Views
No replies
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Hammer compile error : "info_player_start leaked"
by Lulu · May 02, 2024
1 Replies · 1,629 Views
Last post by lexiosity
Dec 10, 2024
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Help with teamSpen210 addons.
by PortalBit · Nov 11, 2024
0 Replies · 1,112 Views
No replies
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How to make voice lines?
by PortalBit · Nov 10, 2024
0 Replies · 982 Views
No replies
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Tutorial for Observation Rooms?
by AutoDMC · Nov 12, 2007
27 Replies · 12,078 Views
Last post by Zahra
Oct 24, 2024
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Hammer isnt compling
by styxwastaken · May 27, 2024
0 Replies · 1,073 Views
No replies
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SOLVED Retexturing cores for custom story mod
by Orinji Neko · Feb 14, 2019
2 Replies · 2,605 Views
Last post by SpeedierGuide98
Jan 11, 2024
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Editing .MDL files?
by Flo2912 · Sep 22, 2013
18 Replies · 7,800 Views
Last post by waltosmuler
Sep 13, 2023
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Hammer (Custom Elevator Bases)
by Cathy_Owner · Aug 07, 2023
0 Replies · 2,317 Views
No replies
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p2map_publish fix!!!
by TreasureGhost · Oct 22, 2015
14 Replies · 6,854 Views
Last post by DrPeeper@The Mover Cell
Jul 30, 2023
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Hammer Run Map Error (If Helps Using Hammer ++)
by poompoompow · Jun 04, 2023
0 Replies · 1,055 Views
No replies
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When I try to run map on normal and all expert settings my map compiles but portal 2 does not load
by NMT-BLU · May 06, 2023
0 Replies · 925 Views
No replies
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can someone tell me what this means? i think its not letting me start my map. it loads fine in portal 2 when i use the command but is missing a few things.
by Shisho · Apr 18, 2023
2 Replies · 1,171 Views
Last post by Shisho
Apr 18, 2023
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An issue with cubemaps
by Catradora sustains me · Apr 14, 2023
0 Replies · 1,152 Views
No replies
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How to change the Portal 2 portal gun view model
by BLUcat5995 · Nov 24, 2020
2 Replies · 2,124 Views
Last post by Badpoolinator
Apr 13, 2023