Thanks. I update the files once a month and it seems many tens of games have been silently updated in the last few days. I have added your notification to the user-maintained not-really-a-changelog thread (http://www.gog.com/forum/general/the_what_did_just_update_thread/post819).

I have some games that you are missing:

Avernum:

avernum_complete_artworks.zip 6aa908e87b06d970aaebdb2d3f51d14d
avernum_complete_avatars.zip 8a7af2df9abd19e6d193fefdf509187e
avernum_complete_manuals.zip 97facfd9cb8bb935554275d118e118eb
avernum_complete_wallpapers.zip 2edc4773cf07667ab29052a30b6a39f8
setup_avernum_series_2.0.0.3.exe 5fdda20df7275460eb45ec9a5954b29a


Catacombs Pack:

catacombs_pack_music_track.zip d4875dbc42e5b3b64adbe37b685661d3
catacomb_pack_avatar.zip 481128733cc1d86d94fb7eb86b3d619b
setup_catacombs_pack_2.0.0.3.exe aeeb470a835678d226f502578e2cfb26


Neverwinter Nights 2 Complete:

nwn_2_complete_artworks.zip 896de108ab4eb5f6c680ea1c0f4f427e
nwn_2_complete_avatars.zip b7bf9398e45104ca805540e45449d04b
nwn_2_complete_manuals.zip fda4b00735d94974cee46a9f7df44dde
nwn_2_complete_soundtracks.zip f91fcdc3e66f668c92b8e675520ff2a2
nwn_2_complete_wallpapers.zip 55644a2063c4a80ad334855764ee2b43
patch_neverwinter_nights_2_complete_2.0.1.6.exe 8b16be87ecfaa6c4d43ae43088783553
setup_nwn2_complete_2.1.0.6-1.bin 7f0c309d426605ef12d6b650c1583b41
setup_nwn2_complete_2.1.0.6-2.bin 5741d78d70a275b61ae5c6b46e0e5030
setup_nwn2_complete_2.1.0.6-3.bin 922ed380f399e7c4da4b00a29c154593
setup_nwn2_complete_2.1.0.6-4.bin 83294db2aee174c05dc436b39e2c00d1
setup_nwn2_complete_2.1.0.6-5.bin eb66b074d1b14946511eed344abc4bec
setup_nwn2_complete_2.1.0.6.exe 6f64b0b2401564c4cde3ffbfa1bf1022


Strike Suit Zero:

patch_strike_suit_zero_2.0.2.6.exe 696b825f87efa5cf6572cd7e3191b6b0
setup_strike_suit_zero_2.0.0.3.exe 8c80faa8798193675d7dc28e4bf546f8
strike_suit_zero_artworks.zip d943a11588a3375ffb51667160a44a1b
strike_suit_zero_wallpapers.zip d73df6b8bf158fd7a0e618ad394b2b72


System Shock 2:

setup_system_shock2de_2.1.0.8.exe 9caf394c09f0963d953fbd353ec61240
setup_system_shock2_2.1.0.19.exe d2aeff3075e5b099d353bd4610d9da3d
system_shock_2_artworks.zip 87a68717aba75b73b42dbdd42afa3038
system_shock_2_avatars.zip a95d91301e0094990146650ddde2bd5d
system_shock_2_concept_maps.zip 37a78c5fd71207ef6af4b76fcf0f700b
system_shock_2_ken_levine_radio_interview.zip c6b6f149590fd87203c349ab7473bbfd
system_shock_2_manual.zip a2b34b47a3abb115a124c274de303103
system_shock_2_pitch_document.zip f75f64ad894b3420ebae6652d5938292
system_shock_2_shodan_render.zip c27e7a705aeb703bf26104f4e5dd2a60
system_shock_2_soundtrack_flac.zip 69692c9e05ccc8455a6a5e2223e47729
system_shock_2_soundtrack_mp3.zip 3b8f737b01660295a6ef82e05f4a4e14
system_shock_2_wallpaper.zip 2ae798201cab663707012eff3c717b6d


Hope it helps, contact me if you need some extra information

Oh sorry forgot the file sizes:

Avernum:
3.834.594 avernum_complete_artworks.zip
155.250 avernum_complete_avatars.zip
4.166.277 avernum_complete_manuals.zip
6.696.510 avernum_complete_wallpapers.zip
115.990.552 setup_avernum_series_2.0.0.3.exe
5 File(s) 130.843.183 bytes

Catacombs Pack:
1.930.595 catacombs_pack_music_track.zip
43.414 catacomb_pack_avatar.zip
14.540.584 setup_catacombs_pack_2.0.0.3.exe
3 File(s) 16.514.593 bytes

Neverwinter Nights 2 Complete:
9.015.982 nwn_2_complete_artworks.zip
809.469 nwn_2_complete_avatars.zip
10.879.413 nwn_2_complete_manuals.zip
378.434.248 nwn_2_complete_soundtracks.zip
15.775.270 nwn_2_complete_wallpapers.zip
53.482.648 patch_neverwinter_nights_2_complete_2.0.1.6.exe
1.564.446.080 setup_nwn2_complete_2.1.0.6-1.bin
1.566.000.000 setup_nwn2_complete_2.1.0.6-2.bin
1.566.000.000 setup_nwn2_complete_2.1.0.6-3.bin
1.566.000.000 setup_nwn2_complete_2.1.0.6-4.bin
1.121.327.757 setup_nwn2_complete_2.1.0.6-5.bin
1.561.664 setup_nwn2_complete_2.1.0.6.exe
12 File(s) 7.853.732.531 bytes

Strike Suit Zero:
20.207.272 patch_strike_suit_zero_2.0.2.6.exe
1.683.957.752 setup_strike_suit_zero_2.0.0.3.exe
1.582.634 strike_suit_zero_artworks.zip
7.080.645 strike_suit_zero_wallpapers.zip
4 File(s) 1.712.828.303 bytes

System Shock 2:
375.826.488 setup_system_shock2de_2.1.0.8.exe
374.279.264 setup_system_shock2_2.1.0.19.exe
3.491.381 system_shock_2_artworks.zip
31.265 system_shock_2_avatars.zip
348.777 system_shock_2_concept_maps.zip
8.592.570 system_shock_2_ken_levine_radio_interview.zip
337.939 system_shock_2_manual.zip
51.522 system_shock_2_pitch_document.zip
3.329.905 system_shock_2_shodan_render.zip
248.336.136 system_shock_2_soundtrack_flac.zip
77.152.653 system_shock_2_soundtrack_mp3.zip
3.217.209 system_shock_2_wallpaper.zip
12 File(s) 1.094.995.109 bytes

Thanks!
Added links to your posts from the OP.

I've got most of the updates added to my site, just waiting on help with those listed in my '#Missings' text file if anybody has those games. Just check the '#Instructions' file for the infos needed for the 'dat' and MD5 files.

My GOG.com Project - http://sdrv.ms/UXVDke

Update (covering the period of 29 March to 27 April 2013):

Added 3 games to the files listed in the original post:
- Neverwinter Nights 2: Complete
- Sword of the Stars: The Pit
- Two Worlds 2: Epic Edition

Updated information about 182 older games (files added, removed or modified):
- Alone in the Dark 1+2+3
- Alone in the Dark: The New Nightmare
- Another World: 20th Anniversary Edition
- Arcanum: Of Steamworks and Magick Obscura
- Assassin's Creed®: Director's Cut
- B-17 Flying Fortress: The Mighty 8th
- Baldur's Gate 2 Complete
- Baldur's Gate: The Original Saga
- The Ball
- Battle Chess Special Edition
- Battle Isle Platinum (includes Incubation)
- Beneath a Steel Sky
- Betrayal at Krondor Pack
- Beyond Divinity
- Beyond Good and Evil™
- Blade of Darkness
- Blitzkrieg 2 Anthology
- Blitzkrieg Anthology
- Blood (One Unit Whole Blood)
- Book of Unwritten Tales, The
- Broken Sword 2: Remastered + The Original Game
- Broken Sword 3: The Sleeping Dragon
- Broken Sword 4: The Angel of Death (Secrets of the Ark)
- Broken Sword: Director's Cut + The Original Game
- Caesar 3
- Capsized
- Castles + Castles 2
- Chronicles of Riddick: Assault on Dark Athena, The
- Colonization, Sid Meier's
- Conquest of the New World
- Costume Quest
- Crusader: No Regret™
- Crusader: No Remorse™
- Dangerous Dave Pack
- Darklands
- Dark Eye: Chains of Satinav, The
- Defender's Quest
- Deponia
- Deponia 2: Chaos on Deponia
- Descent + Descent 2
- Dragonsphere
- Driver®: Parallel Lines
- Duke Nukem 1+2
- Duke Nukem 3D: Atomic Edition
- Dungeon Keeper™
- Dungeon Keeper™ 2
- Dungeons & Dragons: Dragonshard
- Eador: Genesis
- Earthworm Jim 1 + 2
- Earthworm Jim 3D
- Fallout
- Fallout 2
- Fallout Tactics
- Far Cry®
- Far Cry® 2: Fortune's Edition
- Forgotten Realms: Demon Stone
- Freespace 2
- Freespace + Expansion
- FTL: Faster Than Light
- Gabriel Knight 2: The Beast Within
- Gabriel Knight: Sins of the Fathers
- Giants: Citizen Kabuto
- Gothic
- Gothic 2 Gold Edition
- Gothic 3
- Gothic 3: Forsaken Gods Enhanced Edition
- Heritage of Kings: The Settlers™
- Heroes Chronicles: All chapters
- Heroes of Might and Magic® 2: Gold Edition
- Heroes of Might and Magic® 3: Complete Edition
- Heroes of Might and Magic® 4: Complete
- Heroes of Might and Magic® 5: Bundle
- Hostile Waters: Antaeus Rising
- Icewind Dale 2 Complete
- Icewind Dale Complete
- IL-2 Sturmovik™: 1946
- Imperialism
- Invictus: In the Shadow of Olympus
- Jagged Alliance 2: Unfinished Business
- Kingdom: The Far Reaches
- King’s Bounty: Crossworlds GOTY
- King's Quest 1+2+3
- King's Quest 4+5+6
- La Mulana
- Lands of Lore™ 1+2
- Lands of Lore 3
- Lionheart: Legacy of the Crusader
- Locomotion, Chris Sawyer's
- Lucius
- Lure of the Temptress
- Magic Carpet™
- Master of Magic
- Master of Orion 1+2
- Master of Orion 3
- M.A.X. + M.A.X. 2
- MDK
- MDK 2
- Medal of Honor: Allied Assault War Chest
- Miasmata
- Might and Magic® 6-pack: Limited Edition
- Might and Magic® 7: For Blood and Honor™
- Might and Magic® 8: Day of the Destroyer™
- Moonbase Commander
- Neverwinter Nights: Diamond Edition
- A New Beginning - Final Cut
- Nox™
- Oddworld: Stranger's Wrath HD
- Panzer General 2
- Perimeter
- Phantasmagoria
- Phantasmagoria 2
- Pharaoh + Cleopatra
- Pirates! Gold Plus
- Planescape: Torment
- POD Gold
- Police Quest 1+2+3+4
- Populous™
- Populous™ 2: Trials of the Olympian Gods
- Powerslide
- Primordia
- Prince of Persia
- Prince of Persia: The Two Thrones
- Prince of Persia: Warrior Within
- Quest for Glory 1-5
- Rayman 3: Hoodlum Havoc
- The Real Texas
- Redneck Rampage Collection
- Return to Krondor
- RollerCoaster Tycoon 2: Triple Thrill Pack
- Rollercoaster Tycoon 3: Platinum!
- RollerCoaster Tycoon: Deluxe
- Sacrifice
- Screamer
- Screamer 2
- Settlers® 2: Gold Edition, The
- Shadow Warrior Complete
- Shattered Steel
- Sid Meier's Alpha Centauri™
- Silent Hunter® 2
- Snapshot
- Soldiers: Heroes of World War II
- Space Colony HD
- Space Quest 1+2+3
- Space Quest 4+5+6
- Stacking
- Star Control 1+2
- Star Control 3
- Starflight™ 1+2
- Stonekeep
- Street Fighter Alpha 2
- Stronghold Crusader HD
- Stronghold HD
- Syndicate™
- Teenagent
- Temple of Elemental Evil, The
- Terminal Velocity
- Theme Hospital
- Tom Clancy's Ghost Recon®
- Tom Clancy's Splinter Cell®
- Torin's Passage
- Total Annihilation: Commander Pack
- Total Annihilation: Kingdoms + Expansion
- Treasure Adventure Game
- Tyrian 2000
- Ultima™ 1+2+3
- Ultima™ 4: Quest of the Avatar
- Ultima™ 4+5+6
- Ultima™ 7 The Complete Edition
- Ultima™ 8 Gold Edition
- Ultima® Underworld 1+2
- Ultima Worlds of Adventure 2: Martian Dreams
- Warlords Battlecry 2
- Warsow
- Wing Commander™ 1+2
- Wing Commander™ 3 Heart of the Tiger™
- Wing Commander™ 4: The Price of Freedom
- Wing Commander ®: Privateer ™
- Witcher: Enhanced Edition, The
- Worlds of Ultima: The Savage Empire
- XIII
- Zork Anthology, The
- Zork Nemesis: The Forbidden Lands

Thanks.
This should help me fill in my 'blanks' for my files.

Website >>> http://sdrv.ms/UXVDke <<< updated :)

Refer to my "#Missing and to Verify (20130504).txt" file for the games that I still need values for.

Updated :)

Again, please refer to my "#Missing and to Verify (20130511).txt" file for games that I still need name,crc,md5,sha1 values for.

My GOG.com Project - http://sdrv.ms/UXVDke

Update (covering the period of 27 April to 31 May 2013):

Added 13 games to the files listed in the original post:
- 99 Levels to Hell
- Avadon: The Black Fortress
- Book Of Unwritten Tales: The Critter Chronicles, The
- Catacombs Pack
- Driftmoon
- Eschalon: Book I
- Eschalon: Book II
- Imperialism 2: The Age of Exploration
- Race Driver: GRID
- Settlers 2®: 10th Anniversary, The
- Settlers 3®: Ultimate Collection, The
- Total Overdose: A Gunslinger's Tale in Mexico
- Unepic

Updated information about 15 older games (files added, removed or modified):
- 7th Guest, The
- Blake Stone: Aliens of Gold
- Blake Stone: Planet Strike
- FTL: Faster Than Light
- King’s Bounty: Crossworlds GOTY
- La Mulana
- Litil Divil
- Prince of Persia®: The Sands of Time
- Redneck Rampage Collection
- Rise of the Triad: Dark War
- Slipstream 5000
- Tex Murphy 1+2
- Tex Murphy: The Pandora Directive
- Tex Murphy: Under a Killing Moon
- Witcher 2: Assassins Of Kings, The

Anvil of Dawn
Signed May 13, 2013. All files last checked today.

anvil_of_dawn_manual.zip
7e1b002dd0c5e689bd9924690af70e3e
11,438,803 bytes

anvil_of_dawn_reference_card.zip
fb0dfbe0990699ab8e5eec10df57e132
1,402,058 bytes

anvil_of_dawn_soundtrack.zip
7ea9bf107ea20f0f8a8c4d2b854a80fc
246,346,450 bytes

anvil_of_dawn_wallpaper.zip
5aa52559fd71e0c668c11fca3780d95e
4,294,356 bytes

setup_anvil_of_dawn_2.0.0.4.exe
fcd637cf0b9d398d27e2783a74bf7a05
372,109,616 bytes

anvil_of_dawn_avatar.zip
3e3bd69ef4833472fedc6f1480302b90
43,211 bytes



Deathtrap Dungeon
Signed May 6, 2013. All files last checked today.

deathtrap_dungeon_manual.zip
7d918278a42c73e9993429a889190332
3,821,399 bytes

setup_deathtrap_dungeon_2.0.0.11.exe
65de320562954c2c402ca1d82fabd00b
163,412,528 bytes

deathtrap_dungeon_bestiary.zip
2f283abcaa26c0febb0cc42c155f8c08
13,080,807 bytes

It's awesome work but it seems discontinued :/

I've been doing it the slow way.:
1. buy game
2. get date from http request header thingy
3. run program to get md5 for file
4. update gogwiki :P

May all the powers of the universe bless you for maintaining those lists :-)