Also I like the idea with the playgrounds. In that way everyone can contribute something (skills, ideas, etc.).
I played today also a bit on my playground and I developed a simple game idea.
The idea is the following:
First you have X unknown cards, for example 25 unknown cards.
One card (I will call it Jackpot-Card) has an adjustable value of TRI, for example 5 TRI.
The other 24 cards are all traps.
The game consists now by guessing under which card the 5 TRI are hidden.
Each time the user guesses he pays a fixed amount of TRI.
If the guess was successful, the users gets the 5 TRI (added to his balance) and a new game starts.
If the guess was a fail, the guessed card is "out of the game" and the game continues with a card less.
Some aspects to mention:
- A simple account system is needed, only username, password and email (optional)
- Everyone gets the same game, so it's a community game.
- I have a concept to make the game "cheat-proof" from the server side. Such that the Jackpot-Card is already known at the beginning of the game but not in plain-text. After each game the secrets are published. In that way the users can check every game for its correctness.
As I said it is a very simple game, but a Nice-To-Have. Maybe some other games can be added in the future.
And if the game drops some profit, this profit can be used for further works (Faucets, Development and so on).
So, what thinks the community about it?
Some screens:
| http://i.imgur.com/DhDFF73.png | http://i.imgur.com/PlSxbFj.png | http://i.imgur.com/ogqA4cN.png |
]. You already have all the hard work under control. 
