These seem increasingly rare these days, considering all the mainstream gratuitious unhealthy nightmarish lovecraftian diseased evil gorn, torture, sadism, nihilism, demon-worshipping, psychopathic savagery, and enthusiastic warmongering out there, but there must be quite a few ones out there.
For example, I bought and played a game called "Journey", which was quite pleasant and harmonic. I also like games of the Final Fantasy, Kingdom Hearts, Zelda, Mario, etcetera series, and am currently playing "Trails In The Sky".
Are there any very good upbeat or uplifting games that anybody can recommend? Preferably once that are compatible with Playstation Vita, or Playsation 3?
I think I mentioned this once before, but the Dragon Quest series would definitely be to your liking and I highly recommend it.
The downside is that most of the entries are available on the DS, not the Vita.
Sorry, I only know PC games. Would that help you?
LS VI. The music is pleasant, and the storyline is very child friendly. (Except for one part where an extemeley ticked off guy said F^_^.) It definitely won't lose to Final Fantasy.