a bunch of unresolved games from steam import:
missing from completionator:
Ato - https://store.steampowered.com/app/1096180/Ato/
Blood And Zombies - https://store.steampowered.com/app/1739880/Blood_And_Zombies/
Final Vendetta - https://store.steampowered.com/app/1891090/Final_Vendetta/
Her Name Was Fire - https://store.steampowered.com/app/2083840/Her_Name_Was_Fire/
Hidden & Dangerous 2: Courage Under Fire - https://store.steampowered.com/app/703320/Hidden_Dangerous_2_Courage_Under_Fire/ includes both:
* Hidden & Dangerous 2 - https://www.completionator.com/Game/Details/22697
* Hidden & Dangerous 2: Sabre Squadron - https://www.completionator.com/Game/Details/22698
JARS - https://store.steampowered.com/app/1590750/JARS/
KILLRUN - https://store.steampowered.com/app/1442170/KILLRUN/
One More Island - https://store.steampowered.com/app/1454160/One_More_Island/
Orbi Universo - https://store.steampowered.com/app/1090670/Orbi_Universo/
Scarlet Tower - https://store.steampowered.com/app/2181720/Scarlet_Tower/
The Galactic Junkers - https://store.steampowered.com/app/1243160/The_Galactic_Junkers/
You Suck at Parking - https://store.steampowered.com/app/837880/You_Suck_at_Parking/

present on completionator but not mapped properly during steam import:
Backbone - https://www.completionator.com/Game/Details/52280 / https://store.steampowered.com/app/865610/Backbone/
ConnecTank - https://www.completionator.com/Game/Details/61749 / https://store.steampowered.com/app/1597200/ConnecTank/
Grand Mountain Adventure - https://www.completionator.com/Game/Details/62936 / https://store.steampowered.com/app/1247360/Grand_Mountain_Adventure_Wonderlands/
Lost Nova - https://www.completionator.com/Game/Details/62817 / https://store.steampowered.com/app/1603410/Lost_Nova/
Shadows Over Loathing - https://www.completionator.com/Game/Details/64641 / https://store.steampowered.com/app/1939160/Shadows_Over_Loathing/
Sokpop S07: Chatventures - https://www.completionator.com/Game/Details/61481 / https://store.steampowered.com/app/1265850/Chatventures/
Sokpop S07: sok-worlds - https://www.completionator.com/Game/Details/61479 / https://store.steampowered.com/app/1263820/sokworlds/
Sokpop S09: Flipper Volcano - https://www.completionator.com/Game/Details/61444 / https://store.steampowered.com/app/1413350/Flipper_Volcano/
Sokpop S09: King Pins - https://www.completionator.com/Game/Details/61399 / https://store.steampowered.com/app/1459870/King_Pins/
Sokpop S10: Pocket Watch - https://www.completionator.com/Game/Details/61395 / https://store.steampowered.com/app/1510620/Pocket_Watch/
Sumire - https://www.completionator.com/Game/Details/63304 / https://store.steampowered.com/app/1335230/Sumire/

ARKOS - https://store.steampowered.com/app/1596440/ARKOS/
Explorers (Deluxe Edition) - https://trasevol-dog.itch.io/explorers
JEF - https://jeremycouillard.itch.io/jef
A Light Long Gone - https://muddasheep.itch.io/a-light-long-gone
Lost Orbit: Terminal Velocity - https://store.steampowered.com/app/372320/LOST_ORBIT_Terminal_Velocity/
Magic Realm Online - https://store.steampowered.com/app/864610/Magic_Realm_Online/
Nominal - https://store.steampowered.com/app/1454190/Nominal/
Obsideo - https://store.steampowered.com/app/1708460/Obsideo/
A Rite from the Stars - https://store.steampowered.com/app/792370/A_Rite_from_the_Stars/
Salt 2 - https://store.steampowered.com/app/1574900/Salt_2_Shores_of_Gold/
Sarawak - https://store.steampowered.com/app/1249430/Sarawak/
Shutter 2 - https://store.steampowered.com/app/1336620/Shutter_2/
Silent Mansion: Summoner Part 2 - https://thebonsaitreehouse.itch.io/snowdown
Super Bot - https://store.steampowered.com/app/1643600/SUPER_BOT/
Traffic - https://store.steampowered.com/app/2091510/TRAFFIC/
ViveSpray 2 - https://store.steampowered.com/app/614830/ViveSpray_2/

Thank you!

@mgkoll @kw4s Those new items should all be added now sans the Hidden & Dangerous 2: Courage Under Fire collection, I'll leave that to @moho_00!

@kw4s - The mappings should be working for those games now, hopefully. Some were already done, but I fixed/added the ones I saw were missing from your list.

Samarost 1
https://store.steampowered.com/app/1580970/Samorost_1/

or is this not listed for a reason? Is there a different name it might be under? Just being obsessive. lol :)

@GoldenSpork - I noticed you spelled it as "Sam-a-rost" in your post, but in the link and database it's "Sam-o-rost"

The entire series is in the database, so you shouldn't have any problems adding any of them.

From TV Animation - One Piece: Yume no Lufy Kaizokudan Tanjou
https://gamefaqs.gamespot.com/gbc/581063-one-piece-yume-no-luffy-kaizokudan-tanjou

Tootuff: Mission Nadia
https://gamefaqs.gamespot.com/ds/930571-tootuff-mission-nadia

Hello can you please add seven deadly dates https://store.steampowered.com/app/1953490/Seven_Deadly_Dates/

Hello, there is a game called "Skeleton King" that isn't add. Thank you very much for your effort

The one who pulls out the sword will be crowned king - Steam

@everyone - I think most of the requests have been added now. There are a few compilations that will require research (and they'll likely require existing entry modifications).

One Piece: Unlimited Cruise 1: The Treasure Beneath the Waves
https://gamefaqs.gamespot.com/wii/944319-one-piece-unlimited-cruise-1-the-treasure-beneath

One Piece: Unlimited Cruise 2: Awakening of a Hero
https://gamefaqs.gamespot.com/wii/944320-one-piece-unlimited-cruise-2-awakening-of-a-hero

Toon Car: The Great Race
https://gamefaqs.gamespot.com/pc/534188-toon-car-the-great-race

Football Manager 2006
https://gamefaqs.gamespot.com/pc/928129-worldwide-soccer-manager-2006

FA Manager
https://gamefaqs.gamespot.com/ps/577329-fa-manager

Track Lab
https://gamefaqs.gamespot.com/ps4/243407-track-lab

Hatsune Miku VR
https://gamefaqs.gamespot.com/ps4/272761-hatsune-miku-vr

Ah, thank you! And thank you for all you guys do. :)

Pianistic https://store.steampowered.com/app/1325470/Pianistic/

Missing
Miraculous: Rise of the Sphinx - https://www.nintendo.co.uk/Games/Nintendo-Switch-games/Miraculous-Rise-of-the-Sphinx-2278873.html

Not mapped on Steam import
Angry Video Game Nerd I & II Deluxe
Arcade Paradise
Archvale
Bear and Breakfast
Blossom Tales 2: The Minotaur Prince
Chorus
Dome Keeper
Soulstone Survivors

Not in database
DAVE THE DIVER - https://store.steampowered.com/app/1868140/DAVE_THE_DIVER/
Goodbye World - https://store.steampowered.com/app/1833490/GOODBYE_WORLD/
R-Type Dimensions EX - https://store.steampowered.com/app/928390/RType_Dimensions_EX/
Warhammer 40,000: Shootas, Blood & Teef -

Kukoro: Stream Chat Games - https://store.steampowered.com/app/1166990/Kukoro_Stream_chat_games/

Ghost College - https://store.steampowered.com/app/1274360/Ghost_College/

Hard West 2 for PC (really playing on Steam Deck, but it can be played on both!)

Bermuda Syndrome (Windows)
Championship Chess (Windows)
Det magiske jordbæret (Windows) - not sure if you would do this one since it is in Danish
Grandmaster Chess Ultra (Windows)

Need for Speed: Unbound - https://store.steampowered.com/app/1846380/Need_for_Speed_Unbound/

Rosario + Vampire: Tanabata's Miss Yokai Academy
https://rosariovampire.fandom.com/wiki/Rosario%2B_Vampire:_Tanabata%27s_Miss_Yokai_Academy

Super Bullet Break
https://www.nintendo.com/store/products/super-bullet-break-switch/
https://store.playstation.com/en-us/product/UP4293-CUSA31616_00-SBBRPS4SIEA00000
https://store.steampowered.com/app/1767170/Super_Bullet_Break/
(Theres also a Day One Edition for the Switch release)

Sega Genesis Mini 2

Serious Sam Collection which includes:
Serious Sam HD: The First Encounter - https://www.completionator.com/Game/Details/1517
Serious Sam HD: The Second Encounter - https://www.completionator.com/Game/Details/1518
Serious Sam HD: The Second Encounter - Legend of the Beast expansion - https://www.completionator.com/Game/Details/1515
Serious Sam 3: Jewel of the Nile - https://www.completionator.com/Game/Details/22413

note: this is not the same as The Serious Sam Collection - https://www.completionator.com/Game/Details/22427

and I guess some more mismatched games from Steam import not mapping to Completionator entries:
Hidden & Dangerous 2: Courage Under Fire - https://www.completionator.com/Game/Details/65123
McPixel 3 - https://www.completionator.com/Game/Details/64669
Peachleaf Pirates - missing, https://store.steampowered.com/app/1156510/Peachleaf_Pirates/

Please add
https://store.steampowered.com/app/1844330/Profession_investigator/

Thanks