Ok, so I read the FAQ's on the website... but I still don't understand how this site can actually stay afloat by giving out double the amount of BTC per person every time.

Is there some catch?

Hmm... is this ponzi still up and paying?

You (or somebody else) played a LAND game and lost BTC there.

+---------+--------+--------+-------+-------+------+---------------------+
| gameid   | userid  | satoshi | win     | prize | type | timestamp           |
+---------+--------+--------+-------+-------+------+---------------------+
| 1083772 |  38721 |  10000 |     0    |     5 |    1 | 2015-07-21 22:22:46 |
| 1083773 |  38721 |  10000 |     0    |     5 |    1 | 2015-07-21 22:23:09 |
| 1365173 |  38721 | 100000 |     0   |     5 |    2 | 2015-08-28 06:44:38 |
| 1365174 |  38721 | 100000 |     0   |     5 |    2 | 2015-08-28 06:44:40 |
| 1365175 |  38721 | 100000 |     0   |     5 |    2 | 2015-08-28 06:44:42 |
| 1365177 |  38721 |  10000 |     0    |     5 |    1 | 2015-08-28 06:44:50 |
| 1365178 |  38721 |  10000 | 20000  |     1 |    1 | 2015-08-28 06:44:53 |
| 1365179 |  38721 |  10000 |     0    |     5 |    1 | 2015-08-28 06:44:57 |
| 1365180 |  38721 |  10000 |     0    |     5 |    1 | 2015-08-28 06:44:59 |
+---------+--------+--------+-------+-------+------+---------------------+

When somebody is using your account and spend funds, for system it does not matter was it you or your friend or somebody else, who knows your password.
I added 200 000 satoshi back to your account, but I will never do this again. If you lost a password, it's your fault. Otherwise all users which spent money in a game will ask me to refund them. When users win big sums they do not ask me to take a win back.

You can switch on a 2fa, but you should be sure that your email provider can accept emails from ore-mine. Otherwise you can lose access to your account forever.

Please say your ID. (partners link). I will review. Most likely that you are using the same email/password pair as on other sites, and somebody logged in your account. If there are no withdrawals in the payments history, money can be also spend on playing LANDS game. You should also check your email for a password reminder from ore-mine. If you will find reminder, that means that your email box is hacked. Also you can lost your password because of trojans and keyloggers. Please be careful.