diff --git a/data.c b/data.c
index b454457..c6eb8c9 100644
--- a/data.c
+++ b/data.c
@@ -7092,11 +7092,11 @@ void initobjects(void) {
 	addflag(lastot->flags, F_CANBELOCKED, 30, 10, NA, NULL);
 	addflag(lastot->flags, F_CANBETRAPPED, 20, 20, 66, NULL);
 	addflag(lastot->flags, F_CONTAINER, B_TRUE, NA, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 90, 5, NA, NULL); // add 5 to depth for object rarity calculation 
-	addflag(lastot->flags, F_STARTOBRND, 80, 5, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 70, 5, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 60, 5, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 50, 5, NA, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 90, 5, RR_RARE, NULL); // add 5 to depth for object rarity calculation 
+	addflag(lastot->flags, F_STARTOBRND, 80, 5, RR_UNCOMMON, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 70, 5, RR_UNCOMMON, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 60, 5, RR_UNCOMMON, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 50, 5, RR_RARE, NULL);
 	addot(OT_CHESTORNATE, "ornate chest", "An ornate golden treasure chest.", MT_GOLD, 80, OC_FURNITURE, SZ_MEDIUM);
 	addflag(lastot->flags, F_RARITY, H_ALL, 100,  RR_RARE,  NULL);
 	addflag(lastot->flags, F_GLYPH, C_LIGHTYELLOW, '(', NA, NULL);
@@ -7109,11 +7109,11 @@ void initobjects(void) {
 	addflag(lastot->flags, F_CANBELOCKED, 60, 10, NA, NULL);
 	addflag(lastot->flags, F_CANBETRAPPED, 50, 20, 100, NULL);
 	addflag(lastot->flags, F_CONTAINER, B_TRUE, NA, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 90, 10, NA, NULL); // add 10 to depth for object rarity calculation 
-	addflag(lastot->flags, F_STARTOBRND, 80, 10, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 70, 10, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 60, 10, NA, NULL);
-	addflag(lastot->flags, F_STARTOBRND, 50, 10, NA, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 90, 10, RR_VERYRARE, NULL); // add 10 to depth for object rarity calculation 
+	addflag(lastot->flags, F_STARTOBRND, 80, 10, RR_RARE, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 70, 10, RR_RARE, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 60, 10, RR_RARE, NULL);
+	addflag(lastot->flags, F_STARTOBRND, 50, 10, RR_VERYRARE, NULL);
 	addot(OT_EMPTYFLASK, "empty flask", "An empty glass flask.", MT_GLASS, 0.2, OC_MISC, SZ_TINY);
 	addflag(lastot->flags, F_STACKABLE, B_TRUE, NA, NA, NULL);
 	addflag(lastot->flags, F_NOBLESS, B_TRUE, NA,  NA, NULL);
diff --git a/data/vaults/glassvault.vlt b/data/vaults/glassvault.vlt
new file mode 100644
index 0000000..05308a6
--- /dev/null
+++ b/data/vaults/glassvault.vlt
@@ -0,0 +1,20 @@
+@id:glass_vault
+@map
+.....
+.GGG.
+.GcG.
+.GGG.
+.....
+@end
+
+@legend
+#:cell:SOLID
+G:cell:glass wall
+c:ob:ornate chest:50:ob:chest
+@end
+
+@flags
+goesin:dungeon
+rarity:uncommon
+mayrotate
+@end
diff --git a/defs.h b/defs.h
index b5457d7..b28a44a 100644
--- a/defs.h
+++ b/defs.h
@@ -365,6 +365,7 @@
 #define TT_PLAYER	8
 #define TT_ALLY		16
 #define TT_IMPASSABLE	32
+#define TT_VAULT	64
 
 // target requirements
 #define TR_NONE		0
@@ -3748,6 +3749,7 @@ enum FLAG {
 			// calculation 
 	F_STARTOBRND, // val0 = %chance of starting with a random ob
 			// v1 = depth modifier. can use 'RANDOM'
+			// v2 = minimum rarity rating - can use RR_NONE or NA for random.
 	F_STARTOBWEPSK, // val0 = %chance of starting with wepskill val1
 			// v1 = wepskill of object
 			// optional val2 = addition to map depth for rarity
diff --git a/lf.c b/lf.c
index 3e50a98..1432648 100644
--- a/lf.c
+++ b/lf.c
@@ -11319,7 +11319,7 @@ race_t *getrandomrace(cell_t *c, int forcedepth, condset_t *cs) {
 	gettrrange(depth, &hdmin, &hdmax, RARITYVARIANCELF, B_TRUE);
 
 	// pick rr...
-	wantrr = pickrr(TT_MONSTER);
+	wantrr = pickrr(TT_MONSTER, NA);
 
 	if (db) dblog("finding random lf with hitdice %d-%d and rr <= %d (for depth %d)\n",hdmin,hdmax, wantrr, depth);
 
@@ -13206,6 +13206,7 @@ void givestartobs(lifeform_t *lf, object_t *targob, flagpile_t *fp) {
 		} else if (id == F_STARTOBRND) {
 			if (rnd(1,100) <= val[0]) {
 				int depthmod;
+				enum RARITY wantrr = RR_NONE;
 				condset_t cs;
 				depthmod = val[1];
 				switch (depthmod) {
@@ -13215,10 +13216,15 @@ void givestartobs(lifeform_t *lf, object_t *targob, flagpile_t *fp) {
 				}
 				depthmod += depthmod2;
 
+				// select the rr first so that we can enforce a minimum
+				if (val[2] != NA) {
+					wantrr = pickrr(TT_OBJECT, val[2]);
+				}
+
 				initcondv(&cs, 	CC_MAXSIZE, B_TRUE, maxobsize,
 					CC_NONE);
 
-				if (real_getrandomob(mapcell, buf, targmap->depth + depthmod, NA, RR_NONE, B_TRUE, &cs)) {
+				if (real_getrandomob(mapcell, buf, targmap->depth + depthmod, NA, wantrr, B_TRUE, &cs)) {
 					if (isshop) apply_shopob_restrictions(buf);
 					o = addob(op, buf);
 				}
diff --git a/map.c b/map.c
index d7d4844..ab49e52 100644
--- a/map.c
+++ b/map.c
@@ -8792,7 +8792,7 @@ object_t *hastrailof(obpile_t *op, lifeform_t *lf, int oid, flag_t **tflag, life
 void initmap(void) {
 	// habitats
 	//                    thingchance, obchance, vaultchance, maxvisrange, upstiartype, downstairtype, stairs_in_rooms,temp
-	addhabitat(H_DUNGEON, "dungeon", CT_CORRIDOR, CT_WALL, 5, 60, 30, 6, OT_STAIRSUP, OT_STAIRSDOWN, B_TRUE, T_NORMAL);
+	addhabitat(H_DUNGEON, "dungeon", CT_CORRIDOR, CT_WALL, 5, 60, 33, 6, OT_STAIRSUP, OT_STAIRSDOWN, B_TRUE, T_NORMAL);
 	addhabitat(H_ICECAVE, "ice cavern", CT_CORRIDOR, CT_WALLICE, 10, 45, 20, 6, OT_ICESTAIRSUP, OT_ICESTAIRSDOWN, B_FALSE, T_COLD);
 	addhabitat(H_CAVE, "cave", CT_DIRT, CT_WALLDIRT, 5, 45, 20, 6, OT_TUNNELUP, OT_TUNNELDOWN, B_FALSE, T_NORMAL);
 	addhabitat(H_FOREST, "forest", CT_GRASS, CT_WALLTREE, 5, 75, 0, MAXVISRANGE, OT_TREEUP, OT_TREEDOWN, B_FALSE, T_NORMAL);
diff --git a/objects.c b/objects.c
index 6969287..fac3b5d 100644
--- a/objects.c
+++ b/objects.c
@@ -7193,7 +7193,7 @@ objecttype_t *real_getrandomob(cell_t *cell, char *buf, int forcedepth, int forc
 
 	// pick rr...
 	if (forcerr == RR_NONE) {
-		wantrr = pickrr(TT_OBJECT);
+		wantrr = pickrr(TT_OBJECT, NA);
 	} else {
 		wantrr = forcerr;
 	}
@@ -7508,7 +7508,7 @@ enum OBCLASS getrandomobclass(enum HABITAT hab) {
 	objectclass_t *oc,*poss[MAXCANDIDATES];
 	int nposs = 0;
 
-	wantrr = pickrr(TT_OBJECT);
+	wantrr = pickrr(TT_OBJECT, NA);
 	while (!nposs) {
 		for (oc = objectclass ; oc ; oc = oc->next) {
 			enum RARITY thisrarity = RR_NONE;
@@ -10614,61 +10614,6 @@ int otmeetscondition(objecttype_t *ot, enum CELLCONDITION cond, int arg, int val
 	return ok;
 }
 
-/*
-int obmatchescondition(object_t *o, long opts) {
-	int ok;
-
-	if (opts) {
-		// default to not ok
-		ok = B_FALSE;
-	} else {
-		// default to ok
-		ok = B_TRUE;
-	}
-	if ((opts & AO_ONLYEQUIPPED) && hasflag(o->flags, F_EQUIPPED)) {
-		ok = B_TRUE;
-	}
-	if ((opts & AO_EQUIPPEDNONWEAPON)) {
-		flag_t *ff;
-		ff = hasflag(o->flags, F_EQUIPPED);
-		if (ff && !isweapon(o)) {
-			ok = B_TRUE;
-		}	
-	}
-	if ((opts & AO_EDIBLE) && isedible(o)) ok = B_TRUE;
-	if ((opts & AO_DRINKABLE) && isdrinkable(o)) ok = B_TRUE;
-	if ((opts & AO_READABLE) && isreadable(o)) ok = B_TRUE;
-	if ((opts & AO_ARMOUR) && (o->type->obclass->id == OC_ARMOUR)) ok = B_TRUE;
-	if (opts & AO_DAMAGED) {
-		if (isdamaged(o)) {
-			ok = B_TRUE;
-		}
-	}
-	if ((opts & AO_WEARABLE) && iswearable(o)) ok = B_TRUE;
-	if ((opts & AO_WEILDABLE) && isweapon(o)) ok = B_TRUE;
-	if ((opts & AO_OPERABLE) && isoperable(o)) ok = B_TRUE;
-	if ((opts & AO_POURABLE) && ispourable(o)) ok = B_TRUE;
-	if ((opts & AO_NOTIDENTIFIED) && !isidentified(o)) ok = B_TRUE;
-	if ((opts & AO_NOTKNOWN) && !isknown(o)) ok = B_TRUE;
-	if (opts & AO_SPECIFIED) {
-		int n;
-		int found = B_FALSE;
-		// does retlist contain this?
-		for (n = 0; n < nretobs; n++) {
-			if (retobs[n] == o) {
-				found = B_TRUE;
-				break;
-			}
-		}
-		if (found) {
-			ok = B_TRUE;
-		}
-	}
-
-	return ok;
-}
-*/
-
 // returns the amount of light produced
 int obproduceslight(object_t *o) {
 	flag_t *f;
@@ -12607,14 +12552,20 @@ int operate(lifeform_t *lf, object_t *o, cell_t *where) {
 }
 
 
-enum RARITY pickrr(int whatfor) {
+enum RARITY pickrr(int whatfor, int startrr) {
 	enum RARITY wantrr = RR_FREQUENT;
 	int chance = 3;
 	int mod = 0;
 
+	if (startrr != NA) {
+		wantrr = startrr;
+	}
+
 	if ((gamemode == GM_GAMESTARTED) && hasflag(player->flags, F_EXTRALUCK)) {
 		if (whatfor == TT_OBJECT) {
 			wantrr++;
+		} else if (whatfor == TT_VAULT) {
+			wantrr++;
 		} else if (whatfor == TT_MONSTER) {
 			mod = 1;
 		}
diff --git a/objects.h b/objects.h
index 519445f..ce5b019 100644
--- a/objects.h
+++ b/objects.h
@@ -299,7 +299,7 @@ flag_t *obrestrictsmovement(object_t *o, lifeform_t *lf);
 int obsfallthrough(cell_t *c, object_t *pit);
 void obtodancing(lifeform_t *newlf, object_t *o);
 int operate(lifeform_t *lf, object_t *o, cell_t *where);
-enum RARITY pickrr(int whatfor);
+enum RARITY pickrr(int whatfor, int startrr);
 int pilehasletter(obpile_t *op, char let);
 int pileisinshop(obpile_t *op);
 void potioneffects(lifeform_t *lf, enum OBTYPE oid, object_t *o, enum BLESSTYPE potlessed, int *seen);
diff --git a/vault.c b/vault.c
index 6b54645..a715315 100644
--- a/vault.c
+++ b/vault.c
@@ -789,7 +789,7 @@ vault_t *getvaulttype(map_t *m) {
 	enum RARITY rr = RR_COMMON;
 
 	// select random rarity
-	rr = pickrr(TT_NONE);
+	rr = pickrr(TT_VAULT, NA);
 	
 	while (!nposs) {
 		for (v = firstvault ; v ; v = v->next) {