Instructions. Please read them carefully.

Welcome to our game! X people, that is you and X-1 others, have joined us.

Your decision.
You will receive 20 coins per round for X rounds. Each round, you will have to choose how many coins to put directly into your personal account, and how many coins to put into a group account.

Return from personal account.
Each coin that you put into your personal account each round goes one-to-one towards your final earnings in the game.

Return from group account.
Each coin that you and the other participants put into the group account will be summed up, and you will receive half of this sum.

Total number of coins in group accountYour return
00
105
157.5
2814
......
Any amountHalf of that amount

Total return.
The total return for you in this game is equal to the total amount of coins earned over all the rounds of the game.

If you understood the instructions correctly press the button to proceed to the game.