There really is something special about games that do so much with their mechanics in a 2-3 hour timespan that you don't mind replaying them 5 times in a row. It's enhanced somewhat if you're already a Touhou fan, but the game is so incredibly captivating by itself - in terms of gameplay, level design, and music - that any knowledge on the series is optional.

I used to not be into speedrunning.

Used to.

It's literally Supreme Commander but better idk what else to say. Wish they made a sequel though !

A game too ahead of its time. Even if it lacks the sort of precision and balance that popular RTS games like Starcraft have, it excels in capturing the feeling of large-scale warfare like nothing else, with the tactical zoom in particular being something I miss in every RTS I've played since.