Peng et al. provided additional evidence on how game features that increase (or don't) need satisfaction to prior literature (Przybylski et al., 2010; Ryan et al., 2006).

Game features supporting need satisfaction of autonomy:

• greater likelihood of game recommendation
• greater game enjoyment
• greater motivation for future play
• greater game rating

Game features supporting need satisfaction of competence:

• greater game enjoyment
• greater likelihood of game recommendation
• greater self-efficacy for exercise using the game
• greater game rating

Outcomes that were unaffected:

• self reported effort exerted in gameplay