OshiRabu: Waifus Over Husbandos - https://store.steampowered.com/app/1233270/OshiRabu_Waifus_Over_Husbandos/

Arcade Classics Anniversary Collection (PS4/Xbox One/Nintendo Switch/Steam): https://www.konami.com/games/50th/ac/arcade/us/en/

I've been thinking about the Elder Scrolls Online DLC, and I think they should mostly be good to add here, since they add areas, stories and skills.
There are a few game content aspects they tend to contain: region (large map area), quest line, skill line, dungeons (4-player raids, usually with their own quest(s)), trials (12-player raids).
https://www.elderscrollsonline.com/en-us/updates

I'll describe them best as I can. I'll make no mention of any skins/emotes/pets/mounts etc.

Elder Scrolls Online - Imperial City (pvp/pve region, quest line, skill line, 2 dungeons)
Elder Scrolls Online - Orsinium (region, quest line, 2 dungeons)
Elder Scrolls Online - Thieves Guild (region, quest line, skill line, trial)
Elder Scrolls Online - Dark Brotherhood (region, quest line, skill line)
Elder Scrolls Online - Shadows of the Hist (2 dungeons)
Elder Scrolls Online - Horns of the Reach (2 dungeons)
Elder Scrolls Online - Clockwork City (region, quest line, trial)
Elder Scrolls Online - Dragon Bones (2 dungeons)
Elder Scrolls Online - Wolfhunter (2 dungeons)
Elder Scrolls Online - Murkmire (region, quest line, dungeon(?))
Elder Scrolls Online - Wrathstone (2 dungeons)
Elder Scrolls Online - Scalebreaker (2 dungeons)
Elder Scrolls Online - Dragonhold (region, questline)
Elder Scrolls Online - Harrowstorm (2 dungeons)

Lost Daughter: https://store.steampowered.com/app/1008690/Lost_Daughter/
Gravity Wars: https://store.steampowered.com/app/877150/Gravity_Wars/

And another : )

Peter Panic (iOS) - https://www.metacritic.com/game/ios/peter-panic

I'm missing a few Dutch titles (like A2 Racer: De Politie Slaat Terug!) by Davilex. It might technically be that London Racer: Police Madness is an equivalent title, but the environment is completely different (you race in Dutch and German cities instead of in the London area). Those Davilex games are a bit weird like that.

A2 Racer (PC, 1997): https://retro8bitshop.com/product/davilex-a2-racer/
A2 Racer: De Politie Slaat Terug! (PC, 2000): https://www.catawiki.nl/catalogus/video-games/platformen/pc/6291787-a2-racer-de-politie-slaat-terug

Also missing:

Wingstar: https://www.myabandonware.com/game/wingstar-bu4

Please add:

Yo-kai Watch 4

Initial release date: June 20, 2019
Developer: Level-5
Genre: Role-playing video game
Platforms: Nintendo Switch, PlayStation 4

Saiki Kusuo no Psi Nan: Shijo Psi Dai no Psi Nan!? - 3DS

@everyone - I think I've added most of the requested items. The Elder Scrolls Online packs definitely seem like DLC we would want to add here, but I haven't started on those yet. Also wasn't sure about A2 Racer: De Politie Slaat Terug!, is that just a special version of A2 Racer or a pack of games or what?

Hi! Is possible to add this games?

Hyper Sports 1 and Hyper Sports 2 (MSX):
https://www.generation-msx.nl/software/konami/hyper-sports-1/263/
https://www.generation-msx.nl/software/konami/hyper-sports-2/264/

Out Zone (Arcade):
https://en.wikipedia.org/wiki/Out_Zone

Leisure Suit Larry 1: In the Land of the Lounge Lizards (PC),
https://www.mobygames.com/game/leisure-suit-larry-1-in-the-land-of-the-lounge-lizards
(is the 1991 remake of 1987 original game)

And one more thing! If you add to a list Another World (Out of this World) in European version, the cover changes well, but not the title. Always appears "Out of this World"
https://www.completionator.com/Game/Details/69

Thanks a lot! :)

@moho_00 - A2 Racer: De Politie Slaat Terug! is the 4th part in the main A2 Racer series:

A2 Racer (1997)
A2 Racer 2 (1998)
A2 Racer III - Europa Tour (1999)
Vakantie Racer (2000) (spin-off)
A2 Racer IV: De Politie slaat terug (2000)

The box does make it seem like it's a pack of some sort (since it says: 'The Ultimate Race Collection') but as far as I could find Davilex just slapped this label on their whole line of racing games around that time. This is the only version of the box art that I could find without the Ultimate Race Collection logo:

http://www.eduzine.nl/games/19.html

Yuletide Legends: Who Framed Santa Claus
https://store.steampowered.com/app/1174500/Yuletide_Legends_Who_Framed_Santa_Claus/

Ghost Files 2: Memory of a Crime
https://store.steampowered.com/app/1159500/Ghost_Files_2_Memory_of_a_Crime/

Family Mysteries: Poisonous Promises
https://store.steampowered.com/app/1225070/Family_Mysteries_Poisonous_Promises/

Family Mysteries 2: Echoes of Tomorrow
https://store.steampowered.com/app/1247190/Family_Mysteries_2_Echoes_of_Tomorrow/

Thank you! :)

Nintendo Wii

Neopets Puzzle Adventure https://gamefaqs.gamespot.com/wii/946762-neopets-puzzle-adventure
Spray https://gamefaqs.gamespot.com/wii/950878-spray
Wacky World of Sports https://gamefaqs.gamespot.com/wii/958912-wacky-world-of-sports
Yu-Gi-Oh! 5D's Wheelie Breakers https://gamefaqs.gamespot.com/wii/952817-yu-gi-oh-5ds-wheelie-breakers

@moho_00 - I saw you responded but it looks like my request got lost in the shuffle, can you double check?

Arcade Classics Anniversary Collection (PS4/Xbox One/Nintendo Switch/Steam): https://www.konami.com/games/50th/ac/arcade/us/en/

@everyone - Everything should be added now, let me know if I missed anything!

@tenaughtfive - Yep, I added that one: https://www.completionator.com/Game/Details/52029

Just those Elder Scrolls ones, though I know they're a lot. :D

I have a couple interesting additions. I've recently been playing through Call of Duty: Black Ops III's zombies mode and I realized it could probably be counted as a separate game on this website given how expansive it is. If this ends up being the case, then I could see the rest of the zombie games being added separately as well. The easter eggs in these games, which essentially serve to further the zombies storyline are incredibly long and intricate.

In addition to Black Ops III, this would include:
Black Ops
Black Ops II
Advanced Warfare
Infinite Warfare
WWII
Black Ops IIII

Thoughts on these additions?

I think they would only count as a separate entry if they were sold separately.

I'm not super familiar, but did they always sell that separately, or was it included in the earlier games? I think it was included in some of them.

That said, I don't know how the map packs should be treated here.

@moho_00 thanks for the additions!
It's possible to correct the Another World/Out of this world behaviour I commented before? (to switch to correct title when choosing European version)

@Nocmin

The base maps aren't sold separately, but the DLC maps afterwards are.

I'm guessing then that it won't get a separate entry for the Zombies which are part of the base game, since they are always part of the same purchase. Just as with other shooters with the "Fight waves of enemies" modes wouldn't get entries, or games with multiple but distinct campaigns included do not get separate entries (such as RTS games like Red Alert which had Soviet and Allied campaigns).

You could make an argument for the DLC map packs, depending on what they contain (and depending on how it's sold; each pack separately, or the whole pass each time). And depending on the site policy on map packs, which is something I have not asked about before.
It make take some research to figure out how to divide it, if it's something they want to add. If you can find pages that very clearly list and distinguish the DLCs from each game, as well as provide images to identify them, that can greatly help the curators with the decision.

I usually search "insert-game-name DLC Wiki" in google, and you can find fandom wikias that provide most of these details. I've noticed that with Call of Duty, some season passes are all or nothing, and some sold each DLC separately.

Louisiana Adventure:
https://www.mobygames.com/game/louisiana-adventure

The Kite:
https://store.steampowered.com/app/968700/The_Kite/

@roizentner - Those have been added!

I did some research on the Call of Duty packs and oh my, those are messy! I'm not very familiar with the series, so it's possible I'm incorrect on some things, but here are my current thoughts:

• Other sites seem to recognize a few "Zombies" games, but they're mobile games. For example, Call of Duty: Black Ops Zombies for Android / iOS.
• Some sites list Zombies-esque DLC packs, such as Call of Duty: Black Ops II - Nuketown Zombies and Call of Duty: Black Ops III - Zombie Chronicles. In my limited searching, I did not see one for the original Black Ops game. Both of these seem like things that would warrant an entry here.
• There appears to have been a physical release for Call of Duty: Block Ops III - Zombies Chronicles Edition which contains the base game, plus the Zombies Chronicles DLC. This is another item that would warrant a separate entry and should be treated as a compilation.
• There are other DLC packs, such as Call of Duty: Black Ops - First Strike, that would also warrant an entry as they seem very similar to what we've loaded in the past for games like Borderlands.

This page breaks down the Call of Duty series DLC in great detail. Unfortunately, they do not all have images.
https://callofduty.fandom.com/wiki/Downloadable_Content

I'll break down a few right now, going from the bottom up.
Again, if anyone sees I'm incorrect about something, let me know, since I am just going off that site and am not familiar with the games much themselves.

Call of Duty: Black Ops 4
-Black Ops Pass
==>Contains 4 Zombie maps and 12 regular maps, not sold separately. Also includes a bonus Zombies map "Classified" which is the only one sold separately.
-Classified (Zombies)
==>1 Zombie map.
I don't know how you would enter these ones, since the Black Ops Pass includes itself as well as another DLC. Also, you don't usually do season passes, but in this case, the season pass IS the DLC pack. >_< My suggestion would be just to make the two separate entries, Black Ops Pass and Classified, and people with the pass just know that they have the one extra map. Just reading the next game, it looks like this may be something they do often, so it may be prudent to do it that way.

Call of Duty: WWII
-Season Pass
==>Contains the 4 DLC Packs below. Also contains 1 exclusive map, Carentan, not sold separately. I don't know what to do in this case. It clearly is a season pass, but comes with 1 bonus map.
-The Resistance (4 regular maps, 1 zombies map)
-The War Machine (4 regular maps, 1 zombies map)
-United Front (4 regular maps, 1 zombies map)
-Shadow War (4 regular maps, 1 zombies map)

Call of Duty: Infinite Warfare
-Season Pass
==> Contains the 4 DLC Packs below.
-Sabotage (4 regular maps, 1 zombies map)
-Continuum (4 regular maps, 1 zombies map)
-Absolution (4 regular maps, 1 zombies map)
-Retribution (4 regular maps, 1 zombies map)

Call of Duty: Black Ops III
-Season Pass
==> Contains the first 4 DLC Packs and Bonus Zombies map "The Giant" (sold separately) below. It does NOT include the "Zombies Chronicles" DLC pack.
-Awakening (4 regular maps, 1 zombies map)
-Eclipse (4 regular maps, 1 zombies map)
-Descent (4 regular maps, 1 zombies map)
-Salvation (4 regular maps, 1 zombies map)
-The Giant (1 zombies map)
-Zombies Chronicles (8 zombies maps, again NOT part of the Season Pass)

Call of Duty: Advanced Warfare
-Season Pass
==> Includes the 4 DLC packs below, as well as a bonus map Atlas George (also sold separately)
-Havoc (4 regular maps, 1 zombies map)
-Ascendance (4 regular maps, 1 zombies map)
-Supremacy (4 regular maps, 1 zombies map)
-Reckoning (4 regular maps, 1 zombies map)
-Atlas George (1 map, also sold separately. Also included with the Atlas Limited edition of the game, if you want to make something of that. Also also included with the Atlas Limited Pro edition of the game, but that came with the Season pass anyhow, so, redundant)

Call of Duty: Ghosts
-Season Pass
==> Includes 4 DLC Packs below
-Onslaught (4 regular maps, 1 extinction map - an alternative to zombies)
-Devastation (4 regular maps, 1 extinction map)
-Invasion (4 regular maps, 1 extinction map)
-Nemesis (4 regular maps, 1 extinction map)

Call of Duty: Black Ops II
-Season Pass
==> Includes 4 DLC Packs below, and 1 bonus zombies map "Nuketown Zombies" which is also sold separately.
-Revolution (4 regular maps, 1 zombies map)
-Uprising (4 regular maps, 1 zombies map)
-Vengeance (4 regular maps, 1 zombies map)
-Apocalypse (4 regular maps, 1 zombies map)

Call of Duty Modern Warfare 3
-I could not find anything about a Season Pass. Hurray? Also, I'm going to stop specifying what kind of map. We get the idea. Also, below you'll see Content Collections (each sold separately) and Content Packs (I could not see that they were sold separately - only as part of the Collections or if you had the Call of Duty yearly subscription).
-Content Collection 1
==> Includes Content Pack 1 (2 maps), Content Pack 2 (1 map), and Content Pack 3 (3 maps).
-Content Collection 2
==> Includes Content Pack 4 (2 maps) and Content Pack 5 (5 maps)
-Content Collection 3: Chaos Pack
==> Includes Content Pack 6 (4 maps), 1 map from Content Pack 7, Content Pack 8 (2 maps)
-Content Collection 4: Final Assault
==> Includes the other 2 maps from Content Pack 7, and Content Pack 9 (3 maps)

Call of Duty: Black Ops
-No season pass again, that I can see.
-First Strike (5 maps)
-Escalation (5 maps)
-Annihilation (5 maps)
-Rezurrection (5 maps - also included with some premium editions of the game)

Call of Duty: Modern Warfare 2
-Stimulus Package (5 maps)
-Resurgence Pack (5 maps)

Call of Duty: World at War
-Map Pack 1 (4 maps)
-Map Pack 2 (4 maps)
-Map Pack 3 (4 maps)

Call of Duty 4: Modern Warfare
-Variety Map Pack (4 maps)

Call of Duty 3
-Bravo Map Pack (5 maps)
-Valor Map Pack (5 maps)

Call of Duty 2
-Skirmish Map Pack (2 maps)
-Invasion Map Pack (5 maps)

I did not include any free map DLC, or early access maps with special editions or season passes that soon became free DLC. I'd consider those to be part what you get with the base game.

I was on a roll, so I did them all.
I'm exhausted. :D