Reminder: you CAN play any expedition, any time you want.
Hey interlopers.
For those of you on Steam PC, Steam MAC, MS Store/GOG versions, Steamdeck and Nintendo Switch:
I know what I am about to post is not new for most, but still something that I see surface a lot as a question regarding time constraints or simply an expressed sadness to not be able to play old expeditions, or needing to wait to see them rotated back in.
If you are like me - a returning player who only played a month at launch (or otherwise someone that is simply completely new), I'm telling you that you can play all expeditions at any time, for as long as you want, while still claiming the rewards the proper way for your account.
ALL CREDIT GOES TO LEODIUM FOR MAKING THIS PROJECT AND WrasslorMonkey ON DISCORD
https://cwmonkey.github.io/nms-expeditions/
This project allows you to play any expedition you want, just make sure to read the instructions above the center column when you select your chosen expedition on the left hand side, and follow the instructions on the right hand side to get the work around in your files.
NOTE: please always backup your saves before doing anything.
NOTE 2: All this work around does is change the season dates in a JSON file. In order for this to work you need to play the game in offline mode. You are not save editing or cheesing items into your account, you will earn them through its intended gameplay methods, merely at a time of your choosing.
NOTE 3: If you DO go online and play your save, the game will update the season information and your progress in any older expedition will be considered finished automatically, even if you have not completed it.
I recommend for this reason to just focus on playing the expedition fully when you begin.
NOTE 4: While most of the experience will be as seen in the Expedition the code of NMS changes often and not all elements of expeditions can be replicated and workarounds may be applied. (Thanks to Jkthemc for pointing this out.)
Enjoy!