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 · 850 Views
Last post by msleeper
Jan 19, 2026
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Hammer Sticky Reference Thread
by msleeper · Feb 02, 2026
0 Replies · 292 Views
No replies
Topics
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Importing texture issues.
by Morden · Sep 23, 2026
3 Replies · 382 Views
Last post by vrad.exe
Oct 04, 2026
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Decompiled Wakeup Level - Voicelines will not play / work
by fmgstudiosyt · Oct 04, 2026
1 Replies · 230 Views
Last post by vrad.exe
Oct 04, 2026
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Beginner looking for a step-by-step Portal 2 Hammer workflow
by OlafTheGrey · Jul 01, 2026
4 Replies · 1,367 Views
Last post by OlafTheGrey
Jul 02, 2026
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Voices Cut Off Early in Portal 2 Dubbing
by MateuszWis93 · Jul 27, 2024
3 Replies · 2,653 Views
Last post by vrad.exe
May 10, 2026
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Adding custom Voicelines
by CraftyTV · Mar 16, 2026
3 Replies · 768 Views
Last post by TeamSpen210
Apr 06, 2026
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Where to get death fizzler materials?
by Tiny Desk Engineer · Mar 03, 2026
3 Replies · 505 Views
Last post by TeamSpen210
Apr 06, 2026
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How do i fix this?
by Millenium2001 · Feb 21, 2026
1 Replies · 221 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 · 682,184 Views
Last post by vrad.exe
Nov 21, 2025
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Edit an old map without p2c file.
by Jack Schitt · May 02, 2025
0 Replies · 2,213 Views
No replies
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Hammer compile error : "info_player_start leaked"
by Lulu · May 02, 2024
1 Replies · 1,841 Views
Last post by lexiosity
Dec 10, 2024
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Help with teamSpen210 addons.
by PortalBit · Nov 11, 2024
0 Replies · 1,279 Views
No replies
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How to make voice lines?
by PortalBit · Nov 10, 2024
0 Replies · 1,148 Views
No replies
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Tutorial for Observation Rooms?
by AutoDMC · Nov 12, 2007
27 Replies · 13,557 Views
Last post by Zahra
Oct 24, 2024
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Hammer isnt compling
by styxwastaken · May 27, 2024
0 Replies · 1,187 Views
No replies
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SOLVED Retexturing cores for custom story mod
by Orinji Neko · Feb 14, 2019
2 Replies · 2,883 Views
Last post by SpeedierGuide98
Jan 11, 2024
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Editing .MDL files?
by Flo2912 · Sep 22, 2013
18 Replies · 8,754 Views
Last post by waltosmuler
Sep 13, 2023
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Hammer (Custom Elevator Bases)
by Cathy_Owner · Aug 07, 2023
0 Replies · 2,482 Views
No replies
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p2map_publish fix!!!
by TreasureGhost · Oct 22, 2015
14 Replies · 7,553 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 · 1,228 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 · 1,094 Views
No replies