There are no real alternatives to Directbet. In Nitrogen and BitcoinRush you need to register, same with Coinbet24 but I really don't understand why people are lazy to sign up an anonymous account which only takes 5 minutes and starts playing more betting lines than Directbet had, at least in Coinbet24 you have more betting lines than Directbet had.
People still can't forget about directbet which gives us the easiness of betting without any account. More over directbet can hold higher btc per bet which attract more big whale to play herr instead of other site,that is why people try not to play on other site and hope site like directbet will come back again someday