diff --git a/specs/udmf_zdoom.txt b/specs/udmf_zdoom.txt
index 3a9a078bd0..57b32f98bc 100644
--- a/specs/udmf_zdoom.txt
+++ b/specs/udmf_zdoom.txt
@@ -361,6 +361,11 @@ Note: All <bool> fields default to false unless mentioned otherwise.
 	  scroll_floor_x = <float>;
 	  scroll_floor_y = <float>;
 	  scroll_floor_type = <string>;
+	  
+	  friction = <float>;             // sets the sector's friction factor. Must be between 0 and 1.
+	  movefactor = <float>            // sets the sector's movement acceleration factor. Must be > 0.
+	  
+	  colormap = <string>;            // only provided for backwards compatibility. Do not use in GZDoom projects.
 
       * Note about dropactors
 
diff --git a/src/maploader/maploader.h b/src/maploader/maploader.h
index 432d75197d..9848961bf8 100644
--- a/src/maploader/maploader.h
+++ b/src/maploader/maploader.h
@@ -197,6 +197,7 @@ private:
 	void CreateScroller(EScroll type, double dx, double dy, sector_t *sect, side_t* side, int accel, EScrollPos scrollpos = EScrollPos::scw_all, int scrollmode = 15/*SCROLL_All*/);
 	void SpawnScrollers();
 	void SpawnFriction();
+	void SpawnUDMFFriction(double friction_factor, double move_factor, sector_t* sec);
 	void SpawnPushers();
 	AActor *GetPushThing (int s);
 	void SpawnPortal(line_t *line, int sectortag, int plane, int bytealpha, int linked);
diff --git a/src/maploader/udmf.cpp b/src/maploader/udmf.cpp
index b6509875e8..206b7b85fc 100644
--- a/src/maploader/udmf.cpp
+++ b/src/maploader/udmf.cpp
@@ -1637,6 +1637,8 @@ public:
 		double scroll_floor_y = 0;
 		int scroll_floor_type = 0;
 
+		double friction = -FLT_MAX, movefactor = -FLT_MAX;
+
 		const double scrollfactor = 1 / 3.2;	// I hope this is correct, it's just a guess taken from Eternity's code.
 
 		memset(sec, 0, sizeof(*sec));
@@ -2110,7 +2112,19 @@ public:
 					break;
 				}
 
-				// These two are used by Eternity for something I do not understand.
+				case NAME_colormap:
+					sec->selfmap = R_ColormapNumForName(CheckString(key));
+					break;
+
+				case NAME_frictionfactor:
+					friction = CheckFloat(key);
+					break;
+
+				case NAME_movefactor:
+					movefactor = CheckFloat(key);
+					break;
+
+					// These two are used by Eternity for something I do not understand.
 				//case NAME_portal_ceil_useglobaltex:
 				//case NAME_portal_floor_useglobaltex:
 
@@ -2236,6 +2250,16 @@ public:
 			sec->Colormap.Desaturation = clamp(desaturation, 0, 255);
 			sec->Colormap.FogDensity = clamp(fogdensity, 0, 512) / 2;
 		}
+		if (friction > -FLT_MAX)
+		{
+			sec->friction = clamp(friction, 0., 1.);
+			sec->movefactor = FrictionToMoveFactor(sec->friction);
+			sec->Flags |= SECF_FRICTION;
+		}
+		if (movefactor > -FLT_MAX)
+		{
+			sec->movefactor = max(movefactor, 1 / 2048.);
+		}
 	}
 
 	//===========================================================================