Love Nikki is a gatcha fashion game, wherein you follow the adventures of the titular Nikki as she wanders through a fantasy world making friends, enemies, frenemies and dueling all of them along the way with her sartorial choices.
I played the North American release for a couple of years around 2017 or so, and at the time it was surprisingly fun and not super egregious on the gatcha. It was fairly easy to get nice fashion outfits just by putting in some time to grind them, and the purchase-able ones had options in the $5 range which was fairly easy to justify if it was the only game you were sinking money into.
I had a really good time with it, as the fashion duels were pretty much a disguise for numerical superiority. Each suit piece had a style and a score attached to it in the background, so if you were competing for Cool & Sporty, you could build a spreadsheet to search for items with Cool and/or Sporty styles and sort it how many points it had in each category.
I do love me my spreadsheets.
Another feature in this game's favor was that the outfits (the ones you earned in game anyways) were upgradeable. You would clear a stage in the journey, get a piece of an outfit and some of them could be enhanced to bigger, fancier, stronger items, which was another fun little game in and of itself.
Basically, Love Nikki was a collection game, just featuring skirts instead of pokemon.
So by the time I quit playing, I had a little over 1250 completed suits and it was definitely getting unwieldy trying to remember what I had or didn't have. I'd already built a sheet that would give me best pieces to clear stages (main story) in the game itself, but the freeform stuff pretty much relied on you remembering what you actually had in your wardrobe which was nearly impossible once you had a couple of hundred suits with anywhere from five to a million pieces each.
So I did what any self respecting player would do - I built another spreadsheet!
This one would sort by my defined categories - color, skirt length, time period, if it had snowflakes or flowers or umbrellas, etc. It worked like a charm and I had a lot of fun saving, linking and building the sheet to pull in all the pictures and do the sorting to get a match on all the criteria. It's likely not the neatest, most elegant solution out there but by gum, it works - and that, my friends, is all that's important. Perfect is the enemy of done, as they say.
The lengths I go to sometimes when I'm invested in something in kinda mind boggling actually.