diff --git a/res/GAMES.CONF b/res/GAMES.CONF
index afabd0fdd..e608523fa 100755
--- a/res/GAMES.CONF
+++ b/res/GAMES.CONF
@@ -168,6 +168,7 @@
 1001,MR.DO=Mr. Do!
 1001,MR.ROBOT=Mr. Robot
 0001,MS.PACMAN=Ms. Pacman
+1001,NEPTUNE
 0000,NIBBLER
 0005,NIGHT.MISSION=Night Mission Pinball
 0000,NIGHT.STALKER
diff --git a/res/TITLE.HGR/NEPTUNE b/res/TITLE.HGR/NEPTUNE
new file mode 100644
index 000000000..f12716c64
Binary files /dev/null and b/res/TITLE.HGR/NEPTUNE differ
diff --git a/res/TITLE.HGR/_FileInformation.txt b/res/TITLE.HGR/_FileInformation.txt
index 0f0125137..2ec868951 100644
--- a/res/TITLE.HGR/_FileInformation.txt
+++ b/res/TITLE.HGR/_FileInformation.txt
@@ -154,6 +154,7 @@ MR.DO=Type(06),AuxType(4000),Access(C3)
 MR.ROBOT=Type(06),AuxType(4000),Access(C3)
 MS.PACMAN=Type(06),AuxType(4000),Access(C3)
 N.O.R.A.D=Type(06),AuxType(4000),Access(C3)
+NEPTUNE=Type(06),AuxType(4000),Access(C3)
 NIBBLER=Type(06),AuxType(4000),Access(C3)
 NIGHT.MISSION=Type(06),AuxType(4000),Access(C3)
 NIGHT.STALKER=Type(06),AuxType(4000),Access(C3)
diff --git a/res/dsk/neptune 16k file PRODOS (san inc pack).po b/res/dsk/neptune 16k file PRODOS (san inc pack).po
new file mode 100644
index 000000000..a25b8612e
Binary files /dev/null and b/res/dsk/neptune 16k file PRODOS (san inc pack).po differ
diff --git a/src/prelaunch/neptune.a b/src/prelaunch/neptune.a
new file mode 100644
index 000000000..832951dfd
--- /dev/null
+++ b/src/prelaunch/neptune.a
@@ -0,0 +1,27 @@
+;license:MIT
+;(c) 2020 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/NEPTUNE",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $7E81
+         jsr   $3FF8      ; decompress
+
+         +GET_MACHINE_STATUS
+         and   #CHEATS_ENABLED
+         beq   +
+         lda   #$a5
+         sta   $AC30      ; patch - don't decrease lives
+         sta   $AC4E      ; patch - don't increase lives
++
+         +DISABLE_ACCEL
+         jmp   ($20)
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}