diff --git a/includes/powder.h b/includes/powder.h
index 31d1152b2..a1569bde3 100644
--- a/includes/powder.h
+++ b/includes/powder.h
@@ -399,7 +399,7 @@ static const part_type ptypes[PT_NUM] =
 	{"CLNE",	PIXPACK(0xFFD010),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	1,	1,	100,	SC_SPECIAL,		R_TEMP+0.0f	+273.15f,	251,	"Solid. Duplicates any particles it touches.", ST_SOLID, TYPE_SOLID, &update_CLNE},
 	{"GAS",		PIXPACK(0xE0FF20),	1.0f,	0.01f * CFDS,	0.99f,	0.30f,	-0.1f,	0.0f,	0.75f,	0.001f	* CFDS,	0,	600,	0,	0,	1,	1,	1,		SC_GAS,			R_TEMP+2.0f	+273.15f,	42,		"Gas. Diffuses. Flammable. Liquefies under pressure.", ST_GAS, TYPE_GAS, NULL},
 	{"C-4",		PIXPACK(0xD080E0),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	1000,	2,	50,	1,	1,	100,	SC_EXPLOSIVE,	R_TEMP+0.0f	+273.15f,	88,		"Solid. Pressure sensitive explosive.", ST_SOLID, TYPE_SOLID | PROP_NEUTPENETRATE, NULL},
-	{"GOO",		PIXPACK(0x804000),	0.0f,	0.00f * CFDS,	0.97f,	0.50f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	12,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	75,		"Solid. Deforms and disappears under pressure.", ST_SOLID, TYPE_SOLID | PROP_NEUTPENETRATE|PROP_LIFE_DEC, &update_GOO},
+	{"GOO",		PIXPACK(0x804000),	0.0f,	0.00f * CFDS,	0.97f,	0.50f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	12,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f	+273.15f,	75,		"Solid. Deforms and disappears under pressure.", ST_SOLID, TYPE_SOLID | PROP_NEUTPENETRATE|PROP_LIFE_DEC|PROP_LIFE_KILL_DEC, &update_GOO},
 	{"ICE",		PIXPACK(0xA0C0FF),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	-0.0003f* CFDS,	0,	0,		0,	0,	20,	1,	100,	SC_SOLIDS,		R_TEMP-50.0f+273.15f,	46,		"Solid. Freezes water. Crushes under pressure. Cools down air.", ST_SOLID, TYPE_SOLID|PROP_LIFE_DEC, &update_ICEI},
 	{"METL",	PIXPACK(0x404060),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	1,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Solid. Conducts electricity. Meltable.", ST_SOLID, TYPE_SOLID|PROP_CONDUCTS|PROP_LIFE_DEC|PROP_HOT_GLOW, NULL},
 	{"SPRK",	PIXPACK(0xFFFF80),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.001f	* CFDS,	0,	0,		0,	0,	1,	1,	100,	SC_ELEC,		R_TEMP+0.0f	+273.15f,	251,	"Electricity. Conducted by metal and water.", ST_SOLID, TYPE_SOLID|PROP_LIFE_DEC, &update_SPRK},
diff --git a/src/elements/neut.c b/src/elements/neut.c
index 9e778980e..20d46180e 100644
--- a/src/elements/neut.c
+++ b/src/elements/neut.c
@@ -2,9 +2,9 @@
 
 
 #if defined(WIN32) && !defined(__GNUC__)
-_inline int create_n_parts(int n, int x, int y, float vx, float vy, int t)
+_inline int create_n_parts(int n, int x, int y, float vx, float vy, float temp, int t)
 #else
-inline int create_n_parts(int n, int x, int y, float vx, float vy, int t)//testing a new deut create part
+inline int create_n_parts(int n, int x, int y, float vx, float vy, float temp, int t)//testing a new deut create part
 #endif
 {
 	int i, c;
@@ -33,7 +33,7 @@ inline int create_n_parts(int n, int x, int y, float vx, float vy, int t)//testi
 		parts[i].vx = r*cosf(a);
 		parts[i].vy = r*sinf(a);
 		parts[i].ctype = 0;
-		parts[i].temp += (n*170);
+		parts[i].temp = temp;
 		parts[i].tmp = 0;
 		if (t!=PT_STKM&&t!=PT_STKM2 && t!=PT_PHOT && t!=PT_NEUT && !pmap[y][x])
 			pmap[y][x] = t|(i<<8);
@@ -81,9 +81,9 @@ int update_NEUT(UPDATE_FUNC_ARGS) {
 					update_PYRO(UPDATE_FUNC_SUBCALL_ARGS);
 				}
 #ifdef SDEUT
-				else if ((r&0xFF)==PT_DEUT && (pressureFactor+1+(parts[i].life/100))>(rand()%1000))
+				else if ((r&0xFF)==PT_DEUT && (pressureFactor+1+(parts[r>>8].life/100))>(rand()%1000))
 				{
-					create_n_parts(parts[r>>8].life, x+rx, y+ry, parts[i].vx, parts[i].vy, PT_NEUT);
+					create_n_parts(parts[r>>8].life, x+rx, y+ry, parts[i].vx, parts[i].vy, restrict_flt(parts[r>>8].temp + parts[r>>8].life*500, MIN_TEMP, MAX_TEMP), PT_NEUT);
 					kill_part(r>>8);
 				}
 #else
diff --git a/src/main.c b/src/main.c
index 7317f4561..fbb7ababe 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2993,7 +2993,7 @@ int main(int argc, char *argv[])
 				drawtext(vid_buf, 16, YRES-24, "Click-and-drag to specify a rectangle to copy (right click = cancel).", 255, 216, 32, da*5);
 				break;
 			case 270:
-				drawtext(vid_buf, 16, YRES-24, "Enable or disable compatibility mode (disables heat simulation).", 255, 255, 255, da*5);
+				drawtext(vid_buf, 16, YRES-24, "Simulation options", 255, 255, 255, da*5);
 				break;
 			case 271:
 				drawtext(vid_buf, 16, YRES-24, "You're a moderator", 255, 255, 255, da*5);