diff --git a/src/game/propobj.c b/src/game/propobj.c
index 604e6efc3..6b5922a6c 100644
--- a/src/game/propobj.c
+++ b/src/game/propobj.c
@@ -77,6 +77,10 @@
 #include "textures.h"
 #include "types.h"
 #include "string.h"
+#ifndef PLATFORM_N64
+#include "system.h"
+#include "debugger.h"
+#endif
 
 void rng2SetSeed(u32 seed);
 
@@ -6694,6 +6698,10 @@ s32 projectileTick(struct defaultobj *obj, bool *embedded)
 						|| prop->pos.y < -20000.0f || prop->pos.y > 32000.0f
 						|| prop->pos.x < -32000.0f || prop->pos.x > 32000.0f
 						|| prop->pos.z < -32000.0f || prop->pos.z > 32000.0f) {
+					if (g_DebuggerActive) {
+						sysLogPrintf(LOG_WARNING, "DBG: prop %p (%02x) obj %p (%02x) at (%.2f, %.2f, %.2f) expired",
+							prop, prop->type, obj, obj->type, prop->pos.x, prop->pos.y, prop->pos.z);
+					}
 					obj->hidden |= OBJHFLAG_DELETING;
 				}
 
@@ -10865,6 +10873,16 @@ u32 objTick(struct prop *prop)
 	u32 padnum;
 	struct defaultobj *newparent;
 
+	if (g_DebuggerActive) {
+		if (obj->type != OBJTYPE_HOVERCAR && prop->pos.y <= -20000.f) {
+			if ((obj->hidden & OBJHFLAG_FALLOUT) == 0) {
+				sysLogPrintf(LOG_WARNING, "DBG: prop %p (%02x) obj %p (%02x) at (%.2f, %.2f, %.2f) fell out of world",
+					prop, prop->type, obj, obj->type, prop->pos.x, prop->pos.y, prop->pos.z);
+				obj->hidden |= OBJHFLAG_FALLOUT;
+			}
+		}
+	}
+
 	if (prop->timetoregen > 0) {
 		// Prop is taken/unavailable
 		regenning = true;
diff --git a/src/include/constants.h b/src/include/constants.h
index c5a2e17cb..102e2c79c 100644
--- a/src/include/constants.h
+++ b/src/include/constants.h
@@ -3164,6 +3164,7 @@
 #define OBJHFLAG_BLOCKEDPATH        0x02000000
 #define OBJHFLAG_MOUNTED            0x04000000 // for hoverbike
 #define OBJHFLAG_GRABBED            0x08000000
+#define OBJHFLAG_FALLOUT            0x10000000
 
 // obj->hidden2
 #define OBJH2FLAG_HASOPA       0x01 // obj has opaque polygons (ie. most objects)