That Kirisame's Atelier

in terms of difficulty to implement, aesthetic < gameplay < story. aesthetic is self-explanatory, but you may be saying "but making a good video game is so hard!" and well. it is! it's extremely hard to make a good video game.

buuuuuuuut the problem is that the bar for making a good fanfiction story rises based on how good the original story you're basing it off of is. and touhou (collective works of Team Shanghai Alice) is extremely good, while touhou (collective works of the fans of Team Shanghai Alice) is the average output of a large crowd of highly dedicated otaku. which usually has a lot of passion about something but passion does not generally translate to skill. so in practice if you want to create an interesting story you probably should just hew as closely to the source material as possible in terms of characterization and theme as you can, otherwise something scary might happen to you.

anyway fantasy maiden wars somehow manages to sail blissfully at a totally oblique trajectory to touhou (collective works of Team Shanghai Alice) but manages to tell an enjoyable super robot wars story anyway. while also maintaining both of the other two sufficient qualities (really good super robot wars game, really aesthetically charming.) you should go play it right now

Kogasa invented a new scary face! (transcription in alt text)