But undertale is more unique. Hollowtale is a combination of undertale and hollow knight. I can’t say anything about hollow knight (still sitting on the shelf waiting to be played), but undertale is one of my top 10 games.
It doen't have the charm that undertale has, but it is a superior game. I hadn't intended to make a big story out of it but i am interested to see where it may lead me. Both games are fantastic, as has been mentioned.
Hk has tons of content, it is actually a steal for the. As much as it hurts, i'll vote for hollow knight. I love everything about it from the simple. It's much more of a laid back game with a stronger focus.
Hollowtale is a crossover fan webcomic based on undertale and hollow knight, set after the true pacifist ending of the former and during the incomplete lategame progress of the latter. I haven't played hollow knight myself yet, but i've heard great things from my friends, and the gameplay i've watched seems pretty great. Hollow knight is one of my favourites but i would actually recommend playing undertale first. The art style is simply.
As for comparisons to undertale, they are very different games. I really wanted wanted to do a comic of the two trouble makers meeting.