I found some organic, vegan crackers at Homeplus! They're manufactured by Homeplus and they're a part of the 'Well-Being Plus' line. There are three different flavors: 'Bean Curd,' Garlic, and Onion, each bag priced at 1,380 won.
I tried the Garlic crackers, and they were aiight. Meh~ nothing amazing. Texture-wise, they're pretty much just like animal crackers, except that these had a hint of garlic flavor. I guess they're good if you're looking for a bland, simple snack.
For some reason, half of the bag's contents were cracked... I guess that's why they're called 'crackers.'
