I gave it a try and deposited 1000 bits[1], played some games under the username jameer[2], and then when I tried to withdraw again it claimed my password was incorrect even though it's definitely correct (it's saved by chrome). At the same time I noticed a strong drop in other players, compare the number of players between [3] and [4]. I can only assume it's a scam and they lock you out of your account after you've deposited so you can't get your bits back.

[1] https://blockstream.info/tx/ba451a7fad5131bd27460740543932efb3432dcb9e8bba48e1dd342c07776e98
[2] https://bitcrasha.com/user/jameer
[3] https://bitcrasha.com/game/1098693
[4] https://bitcrasha.com/game/1098989