One question that I’ve seen asked quite often is if it is possible to play past expeditions, and people usually answer that aside from the four redux expeditions at the end of the year, you can’t, officially, that is the only way. However, there is a very easy and safe workaround that allows you to play any expedition at any time.

The data of all the past expeditions is still in the game, but these expeditions can no longer be accessed. However, there’s a file named SEASON_DATA_CACHE.json that controls the start and end dates of the expeditions, the milestones, the rewards, and a bit more. By editing this file, you can make these expeditions playable again without messing with the actual game files or your save file. JSON files are a bit hard to read and understand at first, but someone on github has already modified the file for all past expeditions, even accounting for the inventory system change in the Waypoint update. It’s literally just drag and drop; just make sure to read the readme files first, there’s a very good tutorial and notes about the expeditions, like bugs and possible workarounds.