Tetris Stardust
Tetris Stardust
Tetris Stardust is an online free-to-play Tetris game released in Japan by Tetris Online Japan, Inc.
| Tetris Stardust | |
|---|---|
 Tetris Stardust icon | |
| Publisher(s) | Tetris Online Japan, Inc. |
| Platform(s) | Web (Silverlight) |
| Release | c. December 2009 |
| Gameplay info | |
| Next pieces | 5 |
| Playfield size | 10 × 20 |
| Hold piece | Yes |
| Hard drop | Yes |
| Rotation system | SRS |
 | |
Rotation System
The rotation system in Tetris Stardust is SRS with some modifications to allow wall kicks with the O tetromino. Normally, the O tetromino does not move when rotated, but if one of the following checks succeeds, the game will bypass basic rotation and perform a wall kick.
- If rotating left, the space directly underneath the lower-right block must be occupied
- If rotating right, the space directly underneath the lower-left block must be occupied
| Test 1 | Test 2 | Test 3 | Test 4 | |
|---|---|---|---|---|
| CW | ( 1, 0) | ( 1,-1) | ( 1,-2) | ( 2,-1) |
| CCW | (-1, 0) | (-1,-1) | (-1,-2) | (-2,-1) |
Scoring
Scoring is based on Guideline scoring but with most of the point values doubled. Additional values are defined for certain spins performed with non-T tetrominoes and the unique "Spin Rank" mechanic.
| Action | Points |
|---|---|
| Single | 200 |
| Double | 600 |
| Triple | 1000 |
| Tetris | 1600 |
| T-Spin | 800 |
| Spin (Non-T) | 200 |
| Spin Single | 1600 |
| Spin Double | 2400 |
| Spin Triple | 3200 |
| T-Spin Mini | 8001 |
| T-Spin Mini Single | 200 |
| Spin Mini Single (Non-T) | 400 |
| Spin Mini Double2 | 1200 |
| Combo | 100 × combo count |
| Soft Drop | 1 × cells |
| Hard Drop | 2 × cells |
| Perfect Clear | 200 |
| Back-to-Back | Action Score × 1.5 |
| Spin Rank C | 200 |
| Spin Rank B | 400 |
| Spin Rank A | 800 |
| Spin Rank A+ | 1000 |
| Spin Rank S | 1600 |
| Spin Rank S+ | 1800 |
1 T-Spin Mini awards more points than a T-Spin Mini Single. This may be due to a programming oversight.
2 Displayed in-game as "(Piece)-Spin Mini-W".