I didn't keep our passages, and this is going by memory from our April TA on Voyager, but a typical sea day:
2-3 games, often with/against crew (Baggo, ladder golf, putting, etc)
Various cards/tournaments (bridge, casino activities)
Craft activities
Country Fair on one of the days
Enrichment talks (I believe 2x a day)
I think they did some interactive Q&A with the entertainers
Trivia
Mensa quizzes
Ongoing scavenger hunt (this was kind of disappointing)
Usually some pre/post dinner lounge entertainment
Yoga/fitness activities
PM shows starting at 20:30 iirc
Of course, most of those were also done on port days, just less of them.
I'm sure I'm forgetting some stuff.
One thing I will note,
We had a great time but if I did a TA cruise again I would go west bound, not east bound. Jumping the hour so often in close succession was wearing thin on me. I think westward, gaining an hour would be a far easier imho.