There is no official end date for Torchlight Infinite Season 5 "Twinightmare" yet. The developers haven’t announced any plans for its conclusion or the timing of the next season. This is typical for Torchlight Infinite as they aim to provide ongoing content and avoid set "season" timelines.
However, some factors can give us clues about how long Season 5 might last:
Overall, while there’s no definitive answer, Season 5 is likely to continue for several more months. Keep checking official sources for the latest information and enjoy the ongoing content!
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