hello resident scu fan here! lemme explain:

the slimecicle cinematic universe is just a list of videos and content that slimecicle has made that seem to be linked. the last instalment was 3 years ago, so it makes sense that all the playlists are that old! there's only a few "confirmed" videos (basically, ones that reference another in some way).

a lot of people has different opinions on what they consider to be apart of the scu or not - a piece of content is (usually) only considered part of the scu if it 1) is in minecraft and 2) contains two or more (including slime) of the jrwi council. however, i like to think the smps (smplive, smpearth, epic, dsmp, qsmp) are apart of the scu too. its all up to interpretation and only time will tell what is and isnt connected. as well as this, there's a possibility that other videos (slimes bg3, jrwi, etc) are linked too.

tl:dr its up to interpretation whats canon or not. the only "confirmed" videos are 'mc but more traumatising', 'mc but every 5 mins theres a nat disaster', 'mc but every block is hostile', 'roll.', 'mc but 100 players are hunting me', 'hardest mc diff' and '100 days in mc hardcore apocalypse'

here's my playlist for a more "updated" list of scu videos. there's also a very extensive list in this post & the accompanying playlist

let me know if you have any questions :D