Your research speed buffs apply only once per research upgrade instance, whether you're upgrading per level or in bulk. So don't be confused if you notice a difference in reduction time when queueing research per level and when queueing in bulk.
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article