Yes a number of people died off of this, sad thing is after it got popular a few other "games" emerged on the same concept like "run or die" where you should run through a highway without getting killed but should be close to cars passing by...
The thing about mental well being is a lot so I'm gonna try and focus on certain parts here.
Social anxiety, like saying I love you to someone, or asking for a raise, depends on a number of factors.
There is a whole subreddit dedicated to NoFap, which is the concept of semen retention in order to battle social anxiety, low motivation and self esteem.
So the game could not be one sided you see. If one would truly want to battle social anxiety, one should try both NoFap and some social situational games.
All the while, they should monitor themselves to see on what level is it "helping"
On the contrary, the breathing technique from Wim Hof offers instant gratification, as it takes 1-2 minutes to finish the 30-40 breathing and you will feel the adrenaline and (?) euphoria after the ~15th breath.
Take the cold shower and you get dopamine release, and an awesome clear headed feeling.
The whole thing takes 5-15 minutes to complete.
I think Buddhism would offer a lot of solutions and a high information base for these types of games/projects.
Not sure how much it would cost, or in what way could it be done. It is exactly why i posted it on Philosophy subforum. Would love if people give it some time to ponder on it, maybe come up with some nice ideas
A second chance? Huh... I thought I was on my fifth.