lovestruck
2018 I think 2019 was the first year for lovestruck
2019 Lovestruck Event starts today at 1200 UTC!
2020 Lovestruck Returns to Boundless on the 13th February!
2021 No dev post i could find, but the event did run Love Is In The Air!
2022 No dev post I could find, but the event did run Post Your Screenshots! 2nd!
halloween
2018 No dev post i could find but the event did run Halloween event
2019 Halloween Is Coming Back to Boundless!
2020 Release 248: Halloween 2020! 🎃
2021 No dev post I could find but the event did run [COMPLETE] Brief Downtime at 0930 UTC
2022 not here yet
oortmas
2018 Announcing our Winter Event - Merry Oortmas, coming December 18th!
2020 It's beginning to look a lot like Oortmas... 2020 event starts next week!
2021 No dev post i could find, but the event did run Oortmas event planets/locations
2022 not here yet
I think gleambow and the birthday (anniv) are the only ones we have missed… as I think they must be manually done.