Sweet Home - My Sexy Roommates - https://jastusa.com/sweet-home or https://www.jlist.com/jast015 (both links NSFW)

@kw4s - That one has been added!

Cyber Danganronpa VR The Classroom Trial - https://danganronpa.fandom.com/wiki/Cyber_Danganronpa_VR_The_Class_Trial
Kirigiri Sou - https://danganronpa.fandom.com/wiki/Kirigiri_Sou

@SenorMexicano - Those have both been added!

CARRION
https://store.steampowered.com/app/953490/CARRION/

The Last Night
https://store.steampowered.com/app/612400/The_Last_Night/

Unexplored 2: The Wayfarer's Legacy
https://store.steampowered.com/app/1095040/Unexplored_2_The_Wayfarers_Legacy/

Little Witch Nobeta
https://store.steampowered.com/app/1049890/Little_Witch_Nobeta/

Tiny Dangerous Dungeon - https://store.steampowered.com/app/1013650/Tiny_Dangerous_Dungeons/
Super Dangerous Dungeon - https://store.steampowered.com/app/856540/Super_Dangerous_Dungeons/
Duke Dashington Remastered - https://store.steampowered.com/app/894420/Duke_Dashington_Remastered/

Bankshot Billiards 2 https://gamefaqs.gamespot.com/xbox360/930852-bankshot-billiards-2
In case this link don't work out for art reference...
https://marketplace.xbox.com/en-us/Product/Bankshot-Billiards-2/66acd000-77fe-1000-9115-d802584107ec

Sabbat of the Witch: https://store.steampowered.com/app/888790/Sabbat_of_the_Witch/
Summer Pockets: https://store.steampowered.com/app/897220/Summer_Pockets/

@everyone - Those have all been added!

Lessons with Chii-chan: https://store.steampowered.com/app/1217570/Lessons_with_Chiichan/
FUSER: https://store.steampowered.com/app/1331440/FUSER/

SKYE:
https://store.steampowered.com/app/1214360/SKYE/

Devolverland Expo - https://store.steampowered.com/app/1283220/Devolverland_Expo/
Shadow Warrior 3 - https://store.steampowered.com/app/1036890/Shadow_Warrior_3/
Olija - https://store.steampowered.com/app/1297330/Olija/

@everyone - Those have all been added!

I keep noticing games missing and then forgetting to ask for them to be added, so I'm going to try and be better about it! Sorry if the lists are too long, and for all the extra notes, haha.

Gunslinger Girl Volume I https://gamefaqs.gamespot.com/ps2/919482-gunslinger-girl-volume-i
Gunslinger Girl Volume II https://gamefaqs.gamespot.com/ps2/921058-gunslinger-girl-volume-ii
Gunslinger Girl Volume III https://gamefaqs.gamespot.com/ps2/921265-gunslinger-girl-volume-iii

Princess Maker https://gamefaqs.gamespot.com/x68000/657183-princess-maker
-The earliest version should be the PC-98 version from 1991 that isn't on GameFAQs for some reason? The Turbo CD version is called "Princess Maker 1" instead of just Princess Maker.
Princess Maker: Legend of Another World https://gamefaqs.gamespot.com/snes/580895-princess-maker-legend-of-another-world
Princess Maker 4 https://gamefaqs.gamespot.com/ps2/924506-princess-maker-4
Princess Maker Pocket Daisakusen https://gamefaqs.gamespot.com/ps/573382-princess-maker-pocket-dai-sakusen

RahXephon: Soukyuu Gensoukyoku https://gamefaqs.gamespot.com/ps2/917645-rahxephon-soukyuu-gensoukyoku
-There's also a "Plusculus" version that seems to be the same game but with a different cover art and extra goodies, so I think it's like a Limited Edition version.

Sakura Taisen GB https://gamefaqs.gamespot.com/gbc/577916-sakura-taisen-gb
Sakura Taisen GB2 https://gamefaqs.gamespot.com/gbc/565362-sakura-taisen-gb2
Sakura Taisen Monogatari: Mysterious Paris https://gamefaqs.gamespot.com/ps2/561895-sakura-taisen-monogatari-mysterious-paris
Sakura Taisen: Denmaku Club https://sakurawars.fandom.com/wiki/Sakura_Wars_Denmaku_Club
-Not on GameFAQs even though 2 is, but it's like a collection of screensavers and things of that nature, as is 2
Sakura Taisen: Denmaku Club 2 https://gamefaqs.gamespot.com/pc/133180-sakura-taisen-denmaku-club-2
Sakura Taisen V Episode 0: Kouya no Samurai Musume https://gamefaqs.gamespot.com/ps2/561892-sakura-taisen-v-episode-0-kouya-no-samurai-musume
Jissen Pachinko Hisshouhou! CR Sakura Taisen https://gamefaqs.gamespot.com/ps2/941759-jissen-pachinko-hisshouhou-cr-sakura-taisen
Dramatic Dungeon: Sakura Taisen - Kimi Arugatame https://gamefaqs.gamespot.com/ds/939675-dramatic-dungeon-sakura-taisen-kimi-arugatame
-This applies for all of them, but I think they should all have alt titles that are the same but say "Sakura Wars" instead of Taisen for ease of finding, as the titles are rather interchangeable and someone might search for Sakura Wars instead of Taisen!

Thank you!

Half-Life: Restored - https://store.steampowered.com/app/1283930/HalfLife_Restored/
Half-Life: Absolute Zero - https://store.steampowered.com/app/812440/

"Portal Knights - Legendary Edition" is a compilation that bundles the following.
- Portal Knights
- Portal Knights: Druids, Furfolk, and Relic Defense
- Portal Knights: Elves, Rogues, and Rifts

I've just added those DLC, as they each add new areas and associated quests/items/etc, a class, and a character race.

Also comes with a bunch of cosmetic DLC, but I of course did not add those.

https://store.steampowered.com/bundle/10422/Portal_Knights_Legendary_Edition/

Also, here's an odd one.

Halo Master Chief Collection is a bit messy.
Originally came with
-Halo: Combat Evolved - Anniversary
-Halo 2 - Anniversary
-Halo 3
-Halo 4

They have since added the following as INCLUDED in the bundle.
-Halo 3: ODST
-Halo: Reach

Correct me if I'm wrong about this next part. Original owners who purchased the collection before those games were added to it (not a problem for the Steam version, but possibly a problem for Windows Store or XBONE) needed to upgrade their collection with a further purchase for each of these games. I could see this being a thing for owners of the physical XBONE copy, but not sure about digital.

If original owners of the collection know how that went down, I'm curious. : )

Wow, I think I figured it out. On the Xbox store, they made another Halo Master Chief Anniversary Collection (with the same name). One is no longer for purchase, and has the original set of games. Another is available for purchase, includes the original Master Chief Collection, plus ODST/Reach. Interesting. I think we may have no choice but to follow suit here, since people who bought it before the new version will not have the extra games included.

We would need to rename the existing "Halo: The Master Chief Collection" to "Halo: The Master Chief Collection (2014)", and add a new collection as follows.

Halo: The Master Chief Collection (2019)
-Halo: Combat Evolved - Anniversary
-Halo 2 - Anniversary
-Halo 3
-Halo 4
-Halo 3: ODST
-Halo: Reach

https://store.steampowered.com/app/976730/Halo_The_Master_Chief_Collection/

https://www.microsoft.com/en-ca/p/halo-the-master-chief-collection/9mt8ptgvhx2p?activetab=pivot:overviewtab

Sorry to complicate your life some more, @moho, but I try to get as many details as possible when I do. : )

Gunfire Reborn - https://store.steampowered.com/app/1217060/Gunfire_Reborn/

Just some games and amiibo.

Vib-Ripple - https://gamefaqs.gamespot.com/ps2/921041-vib-ripple
Mojib-Ribbon - https://gamefaqs.gamespot.com/ps2/917919-mojib-ribbon
Snake Amiibo - https://www.nintendo.com/amiibo/detail/snake-amiibo-super-smash-bros-series/
Solaire of Astora Amiibo - https://www.nintendo.com/amiibo/detail/solaire-of-astora-amiibo-dark-souls-series/
Delicious Amiibo - https://www.nintendo.com/amiibo/detail/delicious-amiibo/

Thank you for this site! :^)

Edit: Mad Panic Coaster - https://gamefaqs.gamespot.com/ps/573175-mad-panic-coaster
Is another one that could be added.

Crayta - Stadia

@everyone - Those have all been added, but need to think about the Halo games...

I have a list of some games and DLC (I noticed that DLC would be mentioned alongside some of the games that I entered into my collection) that were not part of the list, apparently. I will put the name of the game alongside the platform in which I actually have it:

Jig-a-Pix: Pets - Nintendo DS (Physical)
Slingo Quest - Nintendo DS (Physical)
Borderlands 3: Bounty Of Blood DLC - Playstation 4 (Digital - download from season pass)
Tetris Party Live - Nintendo 3DS (Digital - Nintendo eShop)
Extreme Hangman - Nintendo 3DS (Digital - Nintendo eShop)(DSiWare ?)
Extreme Hangman 2 - Nintendo 3DS (Digital - Nintendo eShop)(DSiWare ?)

Call of Fries: https://freebies.indiegala.com/call-of-fries/?ref=epicbundle

@Kzoogamer and @MyChaos - Those have all been added!

High School Musical 3: Senior Year - DS
High School Musical 2: Work This Out! - DS

Dunk Lords

https://www.microsoft.com/en-us/p/dunk-lords/9n7p2mqcxrh5