diff --git a/res/GAMES.CONF b/res/GAMES.CONF
index af7df984f..54bc671b9 100755
--- a/res/GAMES.CONF
+++ b/res/GAMES.CONF
@@ -229,7 +229,8 @@
 0001,LANCASTER=Lancaster
 1000,LASER.BOUNCE=Laser Bounce
 0001,LAZER.SILK=Lazer Silk
-0001,LEMMINGS=Lemmings
+0001,LEMM.SIR=Lemmings (Sirius)
+0007,LEMMINGS=Lemmings
 0001,LL=Lethal Labyrinth
 0000,LP=Little Computer People
 0001,LC=Lock 'n' Chase
diff --git a/res/TITLE.HGR.UNPACKED/LEMM.SIR b/res/TITLE.HGR.UNPACKED/LEMM.SIR
new file mode 100644
index 000000000..e55b8a79e
Binary files /dev/null and b/res/TITLE.HGR.UNPACKED/LEMM.SIR differ
diff --git a/res/TITLE.HGR.UNPACKED/LEMMINGS b/res/TITLE.HGR.UNPACKED/LEMMINGS
index e55b8a79e..a47b8e075 100644
Binary files a/res/TITLE.HGR.UNPACKED/LEMMINGS and b/res/TITLE.HGR.UNPACKED/LEMMINGS differ
diff --git a/res/TITLE.HGR/LEMM.SIR b/res/TITLE.HGR/LEMM.SIR
new file mode 100644
index 000000000..fefe48444
Binary files /dev/null and b/res/TITLE.HGR/LEMM.SIR differ
diff --git a/res/TITLE.HGR/LEMMINGS b/res/TITLE.HGR/LEMMINGS
index fefe48444..819995e80 100644
Binary files a/res/TITLE.HGR/LEMMINGS and b/res/TITLE.HGR/LEMMINGS differ
diff --git a/res/dsk/lemmings (sirius) PRODOS (san inc pack).po b/res/dsk/lemmings (sirius) PRODOS (san inc pack).po
new file mode 100644
index 000000000..29f519e65
Binary files /dev/null and b/res/dsk/lemmings (sirius) PRODOS (san inc pack).po differ
diff --git a/res/dsk/lemmings PRODOS (san inc pack).po b/res/dsk/lemmings PRODOS (san inc pack).po
index 4b8755b8b..27928ffd9 100644
Binary files a/res/dsk/lemmings PRODOS (san inc pack).po and b/res/dsk/lemmings PRODOS (san inc pack).po differ
diff --git a/src/index/artwork.idx.a b/src/index/artwork.idx.a
index 37a60719d..f0ac033da 100644
--- a/src/index/artwork.idx.a
+++ b/src/index/artwork.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11570629
+         !be24  11578502
          !le16     4659
diff --git a/src/index/attract.idx.a b/src/index/attract.idx.a
index e008a1ade..9e38ea91e 100644
--- a/src/index/attract.idx.a
+++ b/src/index/attract.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11521712
+         !be24  11529555
          !le16     5343
diff --git a/src/index/cache00.idx.a b/src/index/cache00.idx.a
index 2d22460d1..aee17cb7d 100644
--- a/src/index/cache00.idx.a
+++ b/src/index/cache00.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11461978
+         !be24  11469695
          !le16     3654
diff --git a/src/index/cache01.idx.a b/src/index/cache01.idx.a
index 9117ec332..98a7be219 100644
--- a/src/index/cache01.idx.a
+++ b/src/index/cache01.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11474789
+         !be24  11482543
          !le16     4074
diff --git a/src/index/cache10.idx.a b/src/index/cache10.idx.a
index 57577e48e..aa7d7a771 100644
--- a/src/index/cache10.idx.a
+++ b/src/index/cache10.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11490839
+         !be24  11498630
          !le16     5245
diff --git a/src/index/cache11.idx.a b/src/index/cache11.idx.a
index 02a5d40a3..ef9c427e0 100644
--- a/src/index/cache11.idx.a
+++ b/src/index/cache11.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11509383
+         !be24  11517211
          !le16     5880
diff --git a/src/index/count00.a b/src/index/count00.a
index 139067769..3d34a467c 100644
--- a/src/index/count00.a
+++ b/src/index/count00.a
@@ -3,4 +3,4 @@
 ;
 ; This file is automatically generated
 ;
-!word      273
+!word      274
diff --git a/src/index/count01.a b/src/index/count01.a
index 93ed6adac..5fe492618 100644
--- a/src/index/count01.a
+++ b/src/index/count01.a
@@ -3,4 +3,4 @@
 ;
 ; This file is automatically generated
 ;
-!word      300
+!word      301
diff --git a/src/index/count10.a b/src/index/count10.a
index 0b1c4ac91..4c6051948 100644
--- a/src/index/count10.a
+++ b/src/index/count10.a
@@ -3,4 +3,4 @@
 ;
 ; This file is automatically generated
 ;
-!word      388
+!word      389
diff --git a/src/index/count11.a b/src/index/count11.a
index 55d4dfe97..9c2e78b45 100644
--- a/src/index/count11.a
+++ b/src/index/count11.a
@@ -3,4 +3,4 @@
 ;
 ; This file is automatically generated
 ;
-!word      430
+!word      431
diff --git a/src/index/coverfade.idx.a b/src/index/coverfade.idx.a
index d5729a069..188b3437c 100644
--- a/src/index/coverfade.idx.a
+++ b/src/index/coverfade.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11575288
+         !be24  11583161
          !le16      410
diff --git a/src/index/credits.idx.a b/src/index/credits.idx.a
index fad0fe5e5..bdf2fe9c0 100644
--- a/src/index/credits.idx.a
+++ b/src/index/credits.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11576042
+         !be24  11583915
          !le16      448
diff --git a/src/index/decrunch.idx.a b/src/index/decrunch.idx.a
index 26bc002ea..d6edbf619 100644
--- a/src/index/decrunch.idx.a
+++ b/src/index/decrunch.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11576490
+         !be24  11584363
          !le16      303
diff --git a/src/index/dfx.idx.a b/src/index/dfx.idx.a
index 3f87de4ee..083e59e81 100644
--- a/src/index/dfx.idx.a
+++ b/src/index/dfx.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11529201
+         !be24  11537044
          !le16     1242
diff --git a/src/index/dgr.fizzle.idx.a b/src/index/dgr.fizzle.idx.a
index 8af0f1c12..82350d410 100644
--- a/src/index/dgr.fizzle.idx.a
+++ b/src/index/dgr.fizzle.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11575774
+         !be24  11583647
          !le16       67
diff --git a/src/index/dgr.idx.a b/src/index/dgr.idx.a
index 68ed302f7..0716355d4 100644
--- a/src/index/dgr.idx.a
+++ b/src/index/dgr.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11570570
+         !be24  11578443
          !le16       59
diff --git a/src/index/dhgr.idx.a b/src/index/dhgr.idx.a
index 6c92056f3..a8a179ede 100644
--- a/src/index/dhgr.idx.a
+++ b/src/index/dhgr.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11569052
+         !be24  11576925
          !le16     1437
diff --git a/src/index/dtitle.idx.a b/src/index/dtitle.idx.a
index b03acae11..c3c8f22a4 100644
--- a/src/index/dtitle.idx.a
+++ b/src/index/dtitle.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11554653
+         !be24  11562526
          !le16      537
diff --git a/src/index/fx.idx.a b/src/index/fx.idx.a
index 546b00f18..9c0271819 100644
--- a/src/index/fx.idx.a
+++ b/src/index/fx.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11527055
+         !be24  11534898
          !le16     2146
diff --git a/src/index/gamehelp.idx.a b/src/index/gamehelp.idx.a
index e5d27ec8e..7d1ee46c2 100644
--- a/src/index/gamehelp.idx.a
+++ b/src/index/gamehelp.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11530801
-         !le16     6449
+         !be24  11538644
+         !le16     6464
diff --git a/src/index/gr.fizzle.idx.a b/src/index/gr.fizzle.idx.a
index e37d8122d..827def6dc 100644
--- a/src/index/gr.fizzle.idx.a
+++ b/src/index/gr.fizzle.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11575698
+         !be24  11583571
          !le16       76
diff --git a/src/index/gr.idx.a b/src/index/gr.idx.a
index c6ef7cb29..314a535d6 100644
--- a/src/index/gr.idx.a
+++ b/src/index/gr.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11570489
+         !be24  11578362
          !le16       81
diff --git a/src/index/helptext.idx.a b/src/index/helptext.idx.a
index 903ccb9e6..ba60cc99c 100644
--- a/src/index/helptext.idx.a
+++ b/src/index/helptext.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11575841
+         !be24  11583714
          !le16      201
diff --git a/src/index/hgr0.idx.a b/src/index/hgr0.idx.a
index 28d0b3dcf..3a6e32ce6 100644
--- a/src/index/hgr0.idx.a
+++ b/src/index/hgr0.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11555190
+         !be24  11563063
          !le16     4511
diff --git a/src/index/hgr1.idx.a b/src/index/hgr1.idx.a
index 38dc23af2..0065d523e 100644
--- a/src/index/hgr1.idx.a
+++ b/src/index/hgr1.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11559701
+         !be24  11567574
          !le16     1591
diff --git a/src/index/hgr2.idx.a b/src/index/hgr2.idx.a
index a548b0d37..93924a64d 100644
--- a/src/index/hgr2.idx.a
+++ b/src/index/hgr2.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11561292
+         !be24  11569165
          !le16     1053
diff --git a/src/index/hgr3.idx.a b/src/index/hgr3.idx.a
index 27f131732..4f5f171d8 100644
--- a/src/index/hgr3.idx.a
+++ b/src/index/hgr3.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11562345
+         !be24  11570218
          !le16     3237
diff --git a/src/index/hgr4.idx.a b/src/index/hgr4.idx.a
index a8ef4d075..1e64d508d 100644
--- a/src/index/hgr4.idx.a
+++ b/src/index/hgr4.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11565582
+         !be24  11573455
          !le16     2877
diff --git a/src/index/hgr5.idx.a b/src/index/hgr5.idx.a
index d5fddb05f..a05076386 100644
--- a/src/index/hgr5.idx.a
+++ b/src/index/hgr5.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11568459
+         !be24  11576332
          !le16      479
diff --git a/src/index/hgr6.idx.a b/src/index/hgr6.idx.a
index 931cde18c..638a7ee78 100644
--- a/src/index/hgr6.idx.a
+++ b/src/index/hgr6.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11568938
+         !be24  11576811
          !le16      114
diff --git a/src/index/joystick.idx.a b/src/index/joystick.idx.a
index a97487a7e..2fb3455c7 100644
--- a/src/index/joystick.idx.a
+++ b/src/index/joystick.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11576793
+         !be24  11584666
          !le16     2370
diff --git a/src/index/miniattract0.idx.a b/src/index/miniattract0.idx.a
index 9000c68b7..9ed359651 100644
--- a/src/index/miniattract0.idx.a
+++ b/src/index/miniattract0.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11542206
+         !be24  11550064
          !le16     4268
diff --git a/src/index/miniattract1.idx.a b/src/index/miniattract1.idx.a
index cb225c720..7fa8951a4 100644
--- a/src/index/miniattract1.idx.a
+++ b/src/index/miniattract1.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11546474
+         !be24  11554332
          !le16     2185
diff --git a/src/index/prelaunch.idx.a b/src/index/prelaunch.idx.a
index 24d64e196..83880b75e 100644
--- a/src/index/prelaunch.idx.a
+++ b/src/index/prelaunch.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11515263
-         !le16     6449
+         !be24  11523091
+         !le16     6464
diff --git a/src/index/res.cover.idx.a b/src/index/res.cover.idx.a
index 13d2b4e03..120aece44 100644
--- a/src/index/res.cover.idx.a
+++ b/src/index/res.cover.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  3720704
+         !be24  3728384
          !le16     8192
diff --git a/src/index/res.help.idx.a b/src/index/res.help.idx.a
index 4c46d0305..08ba8f20e 100644
--- a/src/index/res.help.idx.a
+++ b/src/index/res.help.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  3737088
+         !be24  3744768
          !le16     8192
diff --git a/src/index/res.title.idx.a b/src/index/res.title.idx.a
index 0e7132234..7cb973e24 100644
--- a/src/index/res.title.idx.a
+++ b/src/index/res.title.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  3728896
+         !be24  3736576
          !le16     8192
diff --git a/src/index/search00.idx.a b/src/index/search00.idx.a
index e13ca125f..0ff76c188 100644
--- a/src/index/search00.idx.a
+++ b/src/index/search00.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11453695
-         !le16     8283
+         !be24  11461375
+         !le16     8320
diff --git a/src/index/search01.idx.a b/src/index/search01.idx.a
index 4451ed509..149c0df77 100644
--- a/src/index/search01.idx.a
+++ b/src/index/search01.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11465632
-         !le16     9157
+         !be24  11473349
+         !le16     9194
diff --git a/src/index/search10.idx.a b/src/index/search10.idx.a
index 3608e6bb5..396e764e0 100644
--- a/src/index/search10.idx.a
+++ b/src/index/search10.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11478863
-         !le16    11976
+         !be24  11486617
+         !le16    12013
diff --git a/src/index/search11.idx.a b/src/index/search11.idx.a
index ebe16007d..cfdbdc62c 100644
--- a/src/index/search11.idx.a
+++ b/src/index/search11.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11496084
-         !le16    13299
+         !be24  11503875
+         !le16    13336
diff --git a/src/index/sfx.idx.a b/src/index/sfx.idx.a
index 5666e89f7..a6554ae25 100644
--- a/src/index/sfx.idx.a
+++ b/src/index/sfx.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11530443
+         !be24  11538286
          !le16      358
diff --git a/src/index/slideshow.idx.a b/src/index/slideshow.idx.a
index db2b3a769..51621debc 100644
--- a/src/index/slideshow.idx.a
+++ b/src/index/slideshow.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11537250
+         !be24  11545108
          !le16     4956
diff --git a/src/index/title.idx.a b/src/index/title.idx.a
index 68fd24e5c..7766d247d 100644
--- a/src/index/title.idx.a
+++ b/src/index/title.idx.a
@@ -4,5 +4,5 @@
 ; This file is automatically generated
 ;
          !byte 0
-         !be24  11548659
-         !le16     5994
+         !be24  11556517
+         !le16     6009
diff --git a/src/prelaunch/lemm.sir.a b/src/prelaunch/lemm.sir.a
new file mode 100644
index 000000000..f2e1c8497
--- /dev/null
+++ b/src/prelaunch/lemm.sir.a
@@ -0,0 +1,28 @@
+;license:MIT
+;(c) 2021-2022 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH.INDEXED/LEMM.SIR",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $41B0
+         jsr   $4000      ; decompress
+         inc   $C9        ; RNG requires non-zero
+         +READ_RAM2_NO_WRITE
+         lda   MachineStatus
+         and   #CHEATS_ENABLED
+         beq   +
+         lda   #$ad
+         sta   $BA5E      ; patch - don't decrease lives
++
+         jsr   DisableAccelerator
+         +READ_ROM_NO_WRITE
+         jmp   $8C8
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}
diff --git a/src/prelaunch/lemmings.a b/src/prelaunch/lemmings.a
index 3591e7967..4ffe0cbd8 100644
--- a/src/prelaunch/lemmings.a
+++ b/src/prelaunch/lemmings.a
@@ -1,5 +1,5 @@
 ;license:MIT
-;(c) 2021-2022 by qkumba
+;(c) 2022 by qkumba
 
 !cpu 6502
 !to "build/PRELAUNCH.INDEXED/LEMMINGS",plain
@@ -9,19 +9,11 @@
 
          +ENABLE_ACCEL
          lda   #$60
-         sta   $41B0
-         jsr   $4000      ; decompress
-         inc   $C9        ; RNG requires non-zero
-         +READ_RAM2_NO_WRITE
-         lda   MachineStatus
-         and   #CHEATS_ENABLED
-         beq   +
-         lda   #$ad
-         sta   $BA5E      ; patch - don't decrease lives
-+
-         jsr   DisableAccelerator
-         +READ_ROM_NO_WRITE
-         jmp   $8C8
+         sta   $21A5
+         jsr   $2000      ; decompress
+         +ENABLE_ACCEL
+
+         jmp   $6000
 
 !if * > $1C0 {
   !error "code is too large, ends at ", *