In this pilot episode game designers Tristan and Oliver break down Thatgamecompany's ground-breaking game Journey into these three bits:

1. The movement mechanics and flow
2. The minimalistic storytelling
3. The profound multiplayer experience

Find us on Twitter:

3-Bit Design: @3bitdesign
Oliver - @oliverwauters
Tristan - @theatrewalker

Some references:

Journey and the art of emotional game design - Nick Harper (article, The Guardian)
How games moves us: Emotion by design - Katherine Isbister (book)
Designing Journey - Jenova Chen (video, GDC talk)
The Intuitive Design of Journey | Game Design Video Essay - Game Dev Academy (video)
Ten years later, Jenova Chen reflects on Journey - Brendan Sinclair (article, GamesIndustry.biz)