DAPP: [Smartolution] Inverted Pyramid

RatingToken shows that a DApp named smartolution is very popular recently, there are totally 277 addresses participating in this game with 5509 transactions and costs 2671.27 ETH.
Smartolution designed an inverted pyramid reward gameplay, theoretically the contract return rate is over 71.11% if continues invest to the end. The gameplay method requests that the user continuously puts the same amount of ETH into the contract every day for 45 days, and each time the transfer succeeds, the user is rewarded with the set ETH, and the returned ETH increases day by day. If there are too many participants on the same day or no new users join, this game will collapse.