* Having the Clothier arrive can lead to the realization that [[spoiler:the old man was freed from his curse after all.]]
* The 1.2 update. So, so, so much new content, and all entirely for free. Gracias, Redigit.
** Which was then followed up by the 1.3 update, which was also for free.
* Freeing the Tax Collector from his torment in the Underworld with Purification Powder. His gratitude is... [[TheScrooge questionable]], but considering he is literally called "[[AndIMustScream Tortured Soul]]" before purification, it's a pretty safe assumption you've done the right thing.
* Several of the paintings that can be randomly found throughout the world can be very heartwarming. The painting "Sparky" features an image of Redigit and Cenx's deceased pet dog; the tooltip reads "In loving memory". "Terrarian Gothic" shows an image of the Mechanic and Goblin Tinkerer together, a romantic pairing that is heavily implied elsewhere in-game. Finally, there are quite a few paintings about boss battles, implying that the player's adventures have become so legendary that Terrarian artists have recorded them for posterity in the form of paintings.