Here's my test:
Note here: Little Big Planet is only lagging because RPCS3 doesn't like to be recorded for some reason. Also second note: Certain levels cannot be completed due to positioning, triggering, and functionality bugs. Most of them were shown when I went into the "My World Tutorials" and fiddled with them.
i7-7700K
GTX 1070 ACX 3.0 8GB
16GB DDR4
Here's my Custom Config:
https://pastebin.com/KGSZ3cAE
Visually this game is nearly perfectly emulated, Sound it great on mainly ASMJIT and above, LLVM PPU decoder needs work as it almost completely breaks sound. Core needs work. I'd still rate this as In-Game compatibility as there is no way to truly complete the game yet.
Here's a link to the save file I have accumulated in RPCS3. This only has what I currently has, but it saves the time of attempting to get Bruteforce Save Data to work at all:
https://www.mediafire.com/file/cell4bxly...1.rar/file
%RPCS3Directory%\dev_hdd0\game is the place you drag the BCUS98148_USER1 folder. This SHOULD properly load the save into the game on launch. Please note that this is version 1.30 Game, RPCS3 0.0.6-8033-243df383 Alpha. The game is the base NON- GAME OF THE YEAR EDITION, however they do perform exactly the same. One more note, I do not know if this save file works for both versions.
Description of the video above. Sorry if it's a bit long or you have to search a little.
Epilogue: Still In-game, using the LLVM PPU recompiler causes some broken physics that allow you to bypass the bridge and other levels. I have provided a working save to the point where the "My Moon" is unlocked as well as exactly why I did it.
Edit: After doing multiplayer via Parsec I had managed to gain further access to new areas. We managed to beat the 3rd level in the kings place (including the intro level), and unlocked the Castle race minigame. The castle minigame plays exactly as intented as there are no mechanical switches in the level. Once I unlock more levels I will start reporting more information back into this same post. Note here: As I said most triggers are broken, by this I mean specific timing windows where the player triggers an action by an object, not all of them. The ones that do work don't affect the broken mechanics such as the spinning bolts. All rope like mechanics work (pulley systems, winches, pistons, elastics blah blah blah). Sticker triggers work. Certain events will only fix them selves after replaying a level, none of which I noticed in story.The Savannah's first level is incapable of being incomplete without a stroke of luck with LLVM PPU and exfloat on. (Will cause the player to bounce uncontrollably at random magnitudes).
Edit2: Tested the MGS dlc, it cannot be completed with ASMJIT PPU on. Haven't tested otherwise.
Edit3: Did some more testing on certain levels. The History pack works normally. Monster pack is fine up until the train, which is unable to be completed due to the wheel using a motor bolt. Skateboard free fall is able to be unlocked with at least 2 people in-game and functions perfectly. The paintball gun works perfectly (though is not able to be unlocked). The bunnies community level is not able to be completed due to a later event where it requires the use of certain bolts. The paintball hp bar works perfectly.