iRewardHealth - Motivating healthy behavior change
skribbl - Word guessing based on drawing.
Tep - Fitness tracker meets tamagotchi. Don't starve it!
LetsDraw.It - Guess and Draw, Drawing Battle, Pictionary, Copy picture - online drawing games where you can compare your skill with others.
Physio Health - Stay healthy, get rewards.
gartic.io - Draw, guess, and win!