diff --git a/bin/check-attract-mode.sh b/bin/check-attract-mode.sh
index 8622156aa..6fb71f1e3 100755
--- a/bin/check-attract-mode.sh
+++ b/bin/check-attract-mode.sh
@@ -65,6 +65,13 @@ cat res/DEMO/_FileInformation.txt |
         grep "$f=0" res/ATTRACT.CONF >/dev/null || echo "unused demo: $f";
     done
 
+# warn about unused slideshows
+cd res/SS
+for f in *.CONF; do
+    grep "$f" ../ATTRACT.CONF >/dev/null || echo "unused slideshow: $f";
+done
+cd ../..
+
 cat res/ATTRACT.CONF |
     grep "=" |
     grep -v "^#" |
diff --git a/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE b/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE
new file mode 100644
index 000000000..794a96515
Binary files /dev/null and b/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE differ
diff --git a/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE2 b/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE2
new file mode 100644
index 000000000..1b8e6294f
Binary files /dev/null and b/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE2 differ
diff --git a/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE3 b/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE3
new file mode 100644
index 000000000..c445a3c3b
Binary files /dev/null and b/res/ACTION.HGR.UNCOMPRESSED/DEEP.SPACE3 differ
diff --git a/res/ACTION.HGR/DEEP.SPACE b/res/ACTION.HGR/DEEP.SPACE
new file mode 100644
index 000000000..921baea82
Binary files /dev/null and b/res/ACTION.HGR/DEEP.SPACE differ
diff --git a/res/ACTION.HGR/DEEP.SPACE2 b/res/ACTION.HGR/DEEP.SPACE2
new file mode 100644
index 000000000..ae5253a50
Binary files /dev/null and b/res/ACTION.HGR/DEEP.SPACE2 differ
diff --git a/res/ACTION.HGR/DEEP.SPACE3 b/res/ACTION.HGR/DEEP.SPACE3
new file mode 100644
index 000000000..205145b84
Binary files /dev/null and b/res/ACTION.HGR/DEEP.SPACE3 differ
diff --git a/res/ACTION.HGR/_FileInformation.txt b/res/ACTION.HGR/_FileInformation.txt
index e9377d515..1a36d801a 100644
--- a/res/ACTION.HGR/_FileInformation.txt
+++ b/res/ACTION.HGR/_FileInformation.txt
@@ -218,6 +218,9 @@ DANGEROUS.DAVE3=Type(06),AuxType(3FF8),Access(C3)
 DANGEROUS.DAVE4=Type(06),AuxType(3FF8),Access(C3)
 DANGEROUS.DAVE5=Type(06),AuxType(3FF8),Access(C3)
 DANGEROUS.DAVE6=Type(06),AuxType(3FF8),Access(C3)
+DEEP.SPACE=Type(06),AuxType(3FF8),Access(C3)
+DEEP.SPACE2=Type(06),AuxType(3FF8),Access(C3)
+DEEP.SPACE3=Type(06),AuxType(3FF8),Access(C3)
 DEFENDER=Type(06),AuxType(3FF8),Access(C3)
 DIAMOND.MINE=Type(06),AuxType(3FF8),Access(C3)
 DIAMOND.MINE2=Type(06),AuxType(3FF8),Access(C3)
diff --git a/res/ARTWORK.SHR.UNCOMPRESSED/DEEP.SPACE b/res/ARTWORK.SHR.UNCOMPRESSED/DEEP.SPACE
new file mode 100644
index 000000000..9cbc8dcb2
Binary files /dev/null and b/res/ARTWORK.SHR.UNCOMPRESSED/DEEP.SPACE differ
diff --git a/res/ARTWORK.SHR/DEEP.SPACE b/res/ARTWORK.SHR/DEEP.SPACE
new file mode 100644
index 000000000..9c1abcaa9
Binary files /dev/null and b/res/ARTWORK.SHR/DEEP.SPACE differ
diff --git a/res/ARTWORK.SHR/_FileInformation.txt b/res/ARTWORK.SHR/_FileInformation.txt
index 2dd326f53..ff4f02171 100644
--- a/res/ARTWORK.SHR/_FileInformation.txt
+++ b/res/ARTWORK.SHR/_FileInformation.txt
@@ -62,6 +62,7 @@ CW=Type(06),AuxType(1FF8),Access(C3)
 CYBER.STRIKE=Type(06),AuxType(1FF8),Access(C3)
 CYCLOD=Type(06),AuxType(1FF8),Access(C3)
 DEATH.SWORD=Type(06),AuxType(1FF8),Access(C3)
+DEEP.SPACE=Type(06),AuxType(1FF8),Access(C3)
 DG=Type(06),AuxType(1FF8),Access(C3)
 DIG.DUG=Type(06),AuxType(1FF8),Access(C3)
 DINO.EGGS=Type(06),AuxType(1FF8),Access(C3)
diff --git a/res/ATTRACT.CONF b/res/ATTRACT.CONF
index fc7953bc1..8ec5cddcd 100644
--- a/res/ATTRACT.CONF
+++ b/res/ATTRACT.CONF
@@ -3,6 +3,7 @@ FAVORITES2.CONF=1
 ACTIONHIJ1.CONF=2
 JUNGLE.HUNT=0
 DHGR1.CONF=3
+CD5.CONF=1
 ACTIONPOP.CONF=2
 SAMMY.LIGHTFOOT=0
 ACTIONEFG6.CONF=2
@@ -12,6 +13,7 @@ SHR1.CONF=5
 # set 2
 FAVORITES4.CONF=1
 PITFALL.II=0
+ACTIONS4.CONF=2
 SYNERGIST.CONF=1
 SPCARTOON.1.=0
 ACTIONMNO1.CONF=2
@@ -27,6 +29,7 @@ SHR2.CONF=5
 # set 3
 AB4.CONF=1
 DIG.DUG=0
+ACTIONS5.CONF=2
 BRODER2.CONF=1
 FALCONS=0
 ACTIONCLR1.CONF=2
@@ -42,6 +45,7 @@ SHR3.CONF=5
 # set 4
 FAVORITES3.CONF=1
 BK=0
+ACTIONMB.CONF=2
 BRODERBUND.CONF=1
 SPACE.EGGS=0
 ACTIONCLR2.CONF=2
@@ -57,6 +61,7 @@ SHR4.CONF=5
 # set 5
 P1.CONF=1
 PM=0
+ACTIONAB8.CONF=2
 OTHER3.CONF=1
 SPCARTOON.6.=0
 ACTIONHIJ3.CONF=2
@@ -72,6 +77,7 @@ SHR5.CONF=5
 # set 6
 MATTEL.CONF=1
 THUNDERBOMBS=0
+ACTIONHIJ5.CONF=2
 FAVORITES1.CONF=1
 FIREBIRD=0
 ACTIONBURG.CONF=2
@@ -87,6 +93,7 @@ SHR6.CONF=5
 # set 7
 EFG2.CONF=1
 REPTON=0
+ACTIONDAVE.CONF=2
 DATAMOST.CONF=1
 BOLO=0
 ACTIONCLR4.CONF=2
@@ -102,6 +109,7 @@ SHR7.CONF=5
 # set 8
 SIERRA.CONF=1
 POOYAN=0
+ACTIONPQR4.CONF=2
 CD1.CONF=1
 SPCARTOON.3.=0
 ACTIONPQR1.CONF=2
@@ -312,10 +320,10 @@ MNO5.CONF=1
 SPIDER.RAID=0
 ACTIONPOP3.CONF=2
 STELLAR.7=0
-ACTIONPQR4.CONF=2
+ACTDHGR14.CONF=4
+HIJKL4.CONF=1
 LADY.TUT=0
 SHR22.CONF=5
-ACTIONHIJ5.CONF=2
 
 [eof]
 
diff --git a/res/ATTRACT/DEEP.SPACE b/res/ATTRACT/DEEP.SPACE
index b8d5afc53..b232a74cb 100644
--- a/res/ATTRACT/DEEP.SPACE
+++ b/res/ATTRACT/DEEP.SPACE
@@ -3,5 +3,9 @@
 # This file is automatically generated
 #
 
+ARTWORK.SHR/DEEP.SPACE=C
+ACTION.HGR/DEEP.SPACE2=A
+ACTION.HGR/DEEP.SPACE3=A
+ACTION.HGR/DEEP.SPACE=A
 
 [eof]
diff --git a/res/SS/ACTIONCD5.CONF b/res/SS/ACTIONCD5.CONF
index df8411c22..6931475a3 100644
--- a/res/SS/ACTIONCD5.CONF
+++ b/res/SS/ACTIONCD5.CONF
@@ -4,6 +4,7 @@
 
 CEILING.ZERO
 DU
+DEEP.SPACE3=DEEP.SPACE
 DOUBLE.TROUBLE
 DINO.SMURF
 CHIVALRY5=CHIVALRY
@@ -11,7 +12,5 @@ CUBIT2=CUBIT
 COLUMNS2=COLUMNS
 CV2=CV
 CC
-CR
-DIVE.BOMBER6=DIVE.BOMBER
 
 [eof]
diff --git a/res/SS/ACTIONCD6.CONF b/res/SS/ACTIONCD6.CONF
index 7e3a626d6..a852fc925 100644
--- a/res/SS/ACTIONCD6.CONF
+++ b/res/SS/ACTIONCD6.CONF
@@ -5,9 +5,9 @@
 DM
 CONGO
 CR2=CR
+DEEP.SPACE2=DEEP.SPACE
 DRELBS
 COUNTY.FAIR
-CV
 CHOPLIFTER
 CHIVALRY6=CHIVALRY
 COSMIC.COMBAT2=COSMIC.COMBAT
diff --git a/res/SS/ACTIONCD7.CONF b/res/SS/ACTIONCD7.CONF
index 3c91f5dec..5b1ce4347 100644
--- a/res/SS/ACTIONCD7.CONF
+++ b/res/SS/ACTIONCD7.CONF
@@ -7,5 +7,9 @@ CRYSTAL.CASTLE3=CRYSTAL.CASTLES
 CRISIS.MOUNTAIN
 CRAZY.MAZEY
 COSMIC.COMBAT
+DEEP.SPACE
+CV
+CR
+DIVE.BOMBER6=DIVE.BOMBER
 
 [eof]
diff --git a/res/SS/CD1.CONF b/res/SS/CD1.CONF
index 015f3b1ae..b8569879b 100644
--- a/res/SS/CD1.CONF
+++ b/res/SS/CD1.CONF
@@ -7,10 +7,8 @@ DONKEY.KONG
 CEILING.ZERO
 CRIME.WAVE
 CENTIPEDE
-DROL
 CRISIS.MOUNTAIN
 CHOPLIFTER
-DINO.EGGS
 DIG.DUG
 COSMIC.COMBAT
 
diff --git a/res/SS/CD3.CONF b/res/SS/CD3.CONF
index 92621e628..99ebb67b8 100644
--- a/res/SS/CD3.CONF
+++ b/res/SS/CD3.CONF
@@ -5,7 +5,6 @@
 CONGO.BONGO
 DUNG.BEETLES
 DRELBS
-CRYSTAL.CASTLES
 CW
 CUBIT
 CYCLOD
diff --git a/res/SS/CD4.CONF b/res/SS/CD4.CONF
index fba73c208..18207f09f 100644
--- a/res/SS/CD4.CONF
+++ b/res/SS/CD4.CONF
@@ -6,8 +6,6 @@ CC
 DIVE.BOMBER
 DU
 COUNTY.FAIR
-COLUMNS
-CHIVALRY
 CS
 DOGFIGHT.II
 CR
diff --git a/res/SS/CD5.CONF b/res/SS/CD5.CONF
new file mode 100644
index 000000000..05e158ab8
--- /dev/null
+++ b/res/SS/CD5.CONF
@@ -0,0 +1,12 @@
+#
+# slideshow of games that begin with "C","D"
+#
+
+DINO.EGGS
+CHIVALRY
+COLUMNS
+CRYSTAL.CASTLES
+DROL
+DEEP.SPACE
+
+[eof]
diff --git a/res/SS/OTHER4.CONF b/res/SS/OTHER4.CONF
index dbb865e7f..1819b3a6e 100644
--- a/res/SS/OTHER4.CONF
+++ b/res/SS/OTHER4.CONF
@@ -6,6 +6,7 @@ FAT.CITY
 DU
 MICRO.INVADERS
 IP
+SS
 STARGLIDER
 RUN.FOR.IT
 MICROWAVE
diff --git a/res/SS/OTHER5.CONF b/res/SS/OTHER5.CONF
index f4b2191be..ab7df6eef 100644
--- a/res/SS/OTHER5.CONF
+++ b/res/SS/OTHER5.CONF
@@ -3,6 +3,7 @@
 #
 
 SEA.DRAGON
+DEEP.SPACE
 POLLYWOG
 DIAMOND.MINE
 AS
diff --git a/res/SS/S4.CONF b/res/SS/S4.CONF
index 0dd8ee026..c3ad33e0d 100644
--- a/res/SS/S4.CONF
+++ b/res/SS/S4.CONF
@@ -10,5 +10,6 @@ STATION.5
 SUPER.BUNNY
 STARGLIDER
 SPECTRE
+SS
 
 [eof]
diff --git a/res/SS/_FileInformation.txt b/res/SS/_FileInformation.txt
index cd3cd35b8..031b199ac 100644
--- a/res/SS/_FileInformation.txt
+++ b/res/SS/_FileInformation.txt
@@ -112,6 +112,7 @@ CD1.CONF=Type(04),AuxType(4000),Access(C3)
 CD2.CONF=Type(04),AuxType(4000),Access(C3)
 CD3.CONF=Type(04),AuxType(4000),Access(C3)
 CD4.CONF=Type(04),AuxType(4000),Access(C3)
+CD5.CONF=Type(04),AuxType(4000),Access(C3)
 DATAEAST.CONF=Type(04),AuxType(4000),Access(C3)
 DATAMOST.CONF=Type(04),AuxType(4000),Access(C3)
 DATAMOST2.CONF=Type(04),AuxType(4000),Access(C3)