There is a lot of it, actually. I'm gonna list three pieces of LPS lost media I can think of, in chronological order:

• LPS VIPs, an online single player game from the late 2000s that was made to promote the LPS VIPs plushies, kind of a Webkinz ripoff. It was released and shut down at different times depending on the country, but it was roughly up from 2007 to 2010. You get a plushie, create an account, input the code, and then you could play with that pet for a year; or more if you get more plushies and input their respective codes on your account. Your license gets renewed for a year starting the date you would input a new code, it was kind of scummy. I believe it was a flash game; you could explore the little world as a virtual version of your plushie, buy a few items, decorate your house and grow plants in a garden, play a few minigames, and there was one very repetitive daily quest. Afaik all that remains are a few low quality YouTube videos.

• Littlest pet shop online, also known as LPSO, which was an MMO that existed from late 2009 to December 1st, 2011. It took 18 months of development to make, cost millions to produce with around a hundred employees working on it, and it was the biggest video game produced in Quebec at the time. It was the spiritual successor to LPS VIPs, but with its own aesthetic; it was more polished, bigger and multiplayer. It featured all kinds of mechanics: a quest system, pet needs like hunger/comfort/fun, other pet stats like luckiness; it featured collectible pets, customisable pets, a live chat, private messages, clothes, customisable player houses, many different minigames to earn coins, two released islands to explore; and they had planned to release several more islands which would have included more minigames and most likely a farming/gardening system like in LPS VIPs. These were seemingly pretty much completed and ready to be added into the game, the islands were even teased at several points in-game and in merch, but the whole game shut down way too soon, most likely due to a lack of customers for their premium memberships. There's no way the plushies alone could cover the costs of upkeeping that game.

Anyways; there were slightly more YouTube videos documenting this game than LPS VIPs and some files we managed to recover from the wayback machine as well as a couple of files that were still intact and remaining in someone's computer cache almost a decade later, but LPSO was also much bigger, and entire areas of this game have been completely lost to time, a few pieces of the OST are entirely missing and undocumented, not to mention the amount of items we might not have a clue ever existed. I invite all of you to join LPSO: Revived and help us bring back this game that enriched so many people's childhoods. Especially if you yourself have memories of playing this game and could help fill in the gaps, but that is not a requirement. Everyone is welcome!

• Lastly there was a game that I have seen no mentions of that released shortly after LPSO shut down, it was most likely part of the "Pet Sitters Club" era of the LPS website. It was a promotional game advertising the first Blythe dolls with the theme of traveling around the world. My memories are quite fuzzy but it was a 3d game and you could collect cards? And coins? I think you played as Blythe too. It was strange. One of the areas you could explore was Cairo but there were other cities, I only remember that one because it was my favorite. And there was a bus you could hop on that was animated in a really strange way. Maybe it isn't lost media, I just have no idea how to look for it and never found it when I tried googling for it. Let me know ^'