Excellent insights, as always! Unfortunately, I also came across this clone site before you wrote this, so I wasn't able to use your referral link. I'll hopefully get you on the next one. The thing that troubles me about this site, and its COSMOS clone, is that you can buy the token for much less than the value of buying the in-game collectibles (at least that's what they want us to believe them to be).
For example, I just purchased 100 SHIPS tokens from the market, which cost me 2.4 TRX. If, however, I purchase the Class 8 ship within the game, I only get 50 SHIPS tokens, which costs 50 TRX. Since I have not purchased any in-game collectibles on either site, I'm not sure how the dividends are distributed for those who buy in-game. Are you getting 47 TRX a month for the 50 you spent?
I actually prefer the long-term games. It's easy to see that this is not a long-term game, but rather as you rightly call them a ponzi-like scheme. I'm still a huge fan of TronHives, which I learned about from your excellent post High Yield Investment in TRX: Tronhive Your Way to Riches, which I highly recommend your readers have a look at! They seem to have created a successful formula for success, which I'm hopeful that perhaps someone on the Steem network could copy... maybe call it SteemBees! ;D