Is this VN canon?

[WickyFrisky]

Or is it just a spin off?

[HeinousStorm602]

spinoff

[KazumaSex]

Rather, the storyline comes from the line of konosuba games, since the “cursed ring”, which was in the konosuba game of the same name, is directly mentioned. In short, this is a spin-off of the anime.

[Chika Ogiue]

The games are spin offs from the light novels and the anime (with the exception of Fantastic Days which has its own light novel and manga adaptations). The Mages. games are directly linked to each other. The two dungeon crawlers are also linked to each other. But the Mages. games are not linked to the dungeon crawlers or Fantastic Days (and likewise for the dungeon crawlers and Fantastic Days).