diff --git a/res/GAMES.CONF b/res/GAMES.CONF
index 4615f1d3a..093ee023d 100755
--- a/res/GAMES.CONF
+++ b/res/GAMES.CONF
@@ -54,6 +54,7 @@
 0001,CRIME.WAVE
 1001,CRISIS.MOUNTAIN
 0001,CROSSFIRE
+0001,CRYSTAL.CASTLES
 0001,CUBIT
 0000,CYBER.STRIKE
 0001,CYCLOD
diff --git a/res/TITLE.HGR/CRYSTAL.CASTLES b/res/TITLE.HGR/CRYSTAL.CASTLES
new file mode 100644
index 000000000..33b744e58
Binary files /dev/null and b/res/TITLE.HGR/CRYSTAL.CASTLES differ
diff --git a/res/TITLE.HGR/_FileInformation.txt b/res/TITLE.HGR/_FileInformation.txt
index 1728fb27a..e61d5b2b2 100644
--- a/res/TITLE.HGR/_FileInformation.txt
+++ b/res/TITLE.HGR/_FileInformation.txt
@@ -48,6 +48,7 @@ CRAZY.MAZEY=Type(06),AuxType(4000),Access(C3)
 CRIME.WAVE=Type(06),AuxType(4000),Access(C3)
 CRISIS.MOUNTAIN=Type(06),AuxType(4000),Access(C3)
 CROSSFIRE=Type(06),AuxType(4000),Access(C3)
+CRYSTAL.CASTLES=Type(06),AuxType(4000),Access(C3)
 CUBIT=Type(06),AuxType(4000),Access(C3)
 CYBER.STRIKE=Type(06),AuxType(4000),Access(C3)
 CYCLOD=Type(06),AuxType(4000),Access(C3)
diff --git a/res/dsk/crystal castles 13k file PRODOS (san inc pack).po b/res/dsk/crystal castles 13k file PRODOS (san inc pack).po
new file mode 100644
index 000000000..118f3bb76
Binary files /dev/null and b/res/dsk/crystal castles 13k file PRODOS (san inc pack).po differ
diff --git a/res/notes/wishlist.txt b/res/notes/wishlist.txt
index a61afde21..c3ad419e5 100644
--- a/res/notes/wishlist.txt
+++ b/res/notes/wishlist.txt
@@ -103,6 +103,3 @@ Zargs
 Fly Wars
 Jellyfish
 Minotaur
-
-//TODO(unreleased)
-Crystal Castles
diff --git a/src/prelaunch/crystal.castles.a b/src/prelaunch/crystal.castles.a
new file mode 100644
index 000000000..05f3664cb
--- /dev/null
+++ b/src/prelaunch/crystal.castles.a
@@ -0,0 +1,25 @@
+;license:MIT
+;(c) 2020 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/CRYSTAL.CASTLES",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $53D7
+         jsr   $2000      ; decompress
+         +GET_MACHINE_STATUS
+         and   #CHEATS_ENABLED
+         beq   +
+         lda   #$b5
+         sta   $1DCF      ; patch - don't decrease lives
++
+         +DISABLE_ACCEL
+         jmp   $93D
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}