Very interesting comparison with ETH game DApps and Metamask.
I agree that Steem Keychain and Steem games are much easier and faster to use.
I played a bit of Cryptokitties when it first came out and the transaction fees killed my interest in playing.
By contrast Steem Monsters has had me hooked for a few months.
I'm a little uncertain about the payout model of Drug Wars, it will need to be adjusted if it is just re-distributing later investments to earlier investors - that is a ponzi scheme.
However if the game itself is compelling enough to keep people playing and paying for the gameplay rather than the ROI, then it is not a ponzi scheme and will be sustainable.
I think it's going to be all about the games this year. Given Steem's speed over ETH we've got quite an advantage there.
Drug Wars has the potential to be a ponzi scheme, but it also has the potential to be a great game and which way is ultimately goes is something that can only be seen in the future.