diff --git a/desktop_version/src/Music.cpp b/desktop_version/src/Music.cpp
index aaa23406..25432762 100644
--- a/desktop_version/src/Music.cpp
+++ b/desktop_version/src/Music.cpp
@@ -391,6 +391,10 @@ void musicclass::changemusicarea(int x, int y)
 
 void musicclass::playef(int t)
 {
+	if (t < 0 || t >= (int) soundTracks.size())
+	{
+		return;
+	}
 	int channel;
 
 	channel = Mix_PlayChannel(-1, soundTracks[t].sound, 0);
diff --git a/desktop_version/src/Script.cpp b/desktop_version/src/Script.cpp
index 19d740b7..0a6bd660 100644
--- a/desktop_version/src/Script.cpp
+++ b/desktop_version/src/Script.cpp
@@ -97,12 +97,16 @@ void scriptclass::run()
 				int temprx=ss_toi(words[1])-1;
 				int tempry=ss_toi(words[2])-1;
 				int curlevel=temprx+(ed.maxwidth*(tempry));
-				ed.level[curlevel].warpdir=ss_toi(words[3]);
+				bool inbounds = curlevel >= 0 && curlevel < 400;
+				if (inbounds)
+				{
+					ed.level[curlevel].warpdir=ss_toi(words[3]);
+				}
 				//If screen warping, then override all that:
 				graphics.backgrounddrawn = false;
 
 				//Do we update our own room?
-				if(game.roomx-100==temprx && game.roomy-100==tempry){
+				if(inbounds && game.roomx-100==temprx && game.roomy-100==tempry){
 					map.warpx=false; map.warpy=false;
 					if(ed.level[curlevel].warpdir==0){
 						map.background = 1;
@@ -132,7 +136,8 @@ void scriptclass::run()
 			}
 			if (words[0] == "ifwarp")
 			{
-				if (ed.level[ss_toi(words[1])-1+(ed.maxwidth*(ss_toi(words[2])-1))].warpdir == ss_toi(words[3]))
+				int room = ss_toi(words[1])-1+(ed.maxwidth*(ss_toi(words[2])-1));
+				if (room >= 0 && room < 400 && ed.level[room].warpdir == ss_toi(words[3]))
 				{
 					load("custom_"+words[4]);
 					position--;
@@ -174,7 +179,8 @@ void scriptclass::run()
 			}
 			else if (words[0] == "customifflag")
 			{
-				if (obj.flags[ss_toi(words[1])])
+				int flag = ss_toi(words[1]);
+				if (flag >= 0 && flag < (int) obj.flags.size() && obj.flags[flag])
 				{
 					load("custom_"+words[2]);
 					position--;
@@ -1284,7 +1290,8 @@ void scriptclass::run()
 			}
 			else if (words[0] == "ifexplored")
 			{
-				if (map.explored[ss_toi(words[1]) + (20 * ss_toi(words[2]))] == 1)
+				int room = ss_toi(words[1]) + (20 * ss_toi(words[2]));
+				if (room >= 0 && room < (int) map.explored.size() && map.explored[room] == 1)
 				{
 					load(words[3]);
 					position--;
@@ -1308,7 +1315,8 @@ void scriptclass::run()
 			}
 			else if (words[0] == "ifflag")
 			{
-				if (obj.flags[ss_toi(words[1])])
+				int flag = ss_toi(words[1]);
+				if (flag >= 0 && flag < (int) obj.flags.size() && obj.flags[flag])
 				{
 					load(words[2]);
 					position--;
@@ -1316,7 +1324,8 @@ void scriptclass::run()
 			}
 			else if (words[0] == "ifcrewlost")
 			{
-				if (game.crewstats[ss_toi(words[1])]==false)
+				int crewmate = ss_toi(words[1]);
+				if (crewmate >= 0 && crewmate < (int) game.crewstats.size() && game.crewstats[crewmate]==false)
 				{
 					load(words[2]);
 					position--;
@@ -1340,11 +1349,19 @@ void scriptclass::run()
 			}
 			else if (words[0] == "hidecoordinates")
 			{
-				map.explored[ss_toi(words[1]) + (20 * ss_toi(words[2]))] = 0;
+				int room = ss_toi(words[1]) + (20 * ss_toi(words[2]));
+				if (room >= 0 && room < (int) map.explored.size())
+				{
+					map.explored[room] = 0;
+				}
 			}
 			else if (words[0] == "showcoordinates")
 			{
-				map.explored[ss_toi(words[1]) + (20 * ss_toi(words[2]))] = 1;
+				int room = ss_toi(words[1]) + (20 * ss_toi(words[2]));
+				if (room >= 0 && room < (int) map.explored.size())
+				{
+					map.explored[room] = 1;
+				}
 			}
 			else if (words[0] == "hideship")
 			{
@@ -1900,7 +1917,11 @@ void scriptclass::run()
 				music.haltdasmusik();
 				music.playef(3);
 
-				obj.collect[ss_toi(words[1])] = true;
+				int trinket = ss_toi(words[1]);
+				if (trinket >= 0 && trinket < (int) obj.collect.size())
+				{
+					obj.collect[trinket] = true;
+				}
 
 				graphics.textboxremovefast();