Refer a friend
If you get a friend to join, you will be rewarded with points that can be exchanged for money! All they have to do is write your username under "referrer" and you will gain points! If you abuse this system, you'll get in trouble. Take a look at the percentile table.
| # of referred friends | Points | In "cash" version |
| 1 | 2 | 2 |
| 2 | 4 | 16 |
| 3 | 6 | 40 |
| 4 | 8 | 74 |
| 5 | 10 | 120 |
| 6 | 11 | 146 |
| 7 | 13 | 208 |
| 8 | 15 | 280 |
| 9 | 17 | 362 |
| 10 | 19 | 456 |
| 11 | 20 | 506 |
| 12 | 22 | 616 |
| 13 | 24 | 736 |
| 14 | 26 | 866 |
| 15 | 28 | 1008 |
| 16 | 28 | 1008 |
| 17 | 39 | 1976 |
| 18 | 42 | 2296 |
| 19 | 44 | 2522 |
| 20 | 46 | 2760 |
| 21 | 49 | 3136 |
| 22 | 51 | 3400 |
| 23 | 53 | 3674 |
| 24 | 56 | 4106 |
| 25 | 58 | 4408 |
