Do you consider Splatoon an Indy game? or a full big budget game? To me its in the middle.

[Peh]

The definition of an Indie games is falsely used. .

"Independent video games (commonly referred to as indie games) are video games created by individuals or small teams generally without video game publisher financial support. "

https://en.wikipedia.org/wiki/Indie_game

Publisher is Nintendo. Developer is also Nintendo as far as I am aware of.

Being it a completely IP, I suppose they went carefully with it and see how it is being received by the audience.
I suppose the next installment will be probably bigger. Hopefully with a real SP Story campaign.