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Dr. Tetromino
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About the game
Dr. Tetromino is a falling-block game with a twist in the pieces. Pieces made of four squares drop into a tall well, as in the classic, but every square has its own colour. Lining up enough tiles of the same colour in a row or a column makes them vanish, and the leftovers of the pieces they belonged to fall down, which can set off further matches in a chain. Clearing lines is therefore about colours as much as about shapes.
Before you start you can set how many tiles make a line (from 2 to 5), how many colours are in play (3 to 5), the starting level (0 to 9) and which tune plays. Every ten clears raise the level, the pieces fall faster and the score grows with the level, the length of the lines you clear and the number of colours. The side panels show a bar chart of the pieces and colours you have received so far, the next piece, your level, your clears and your score.
Playing it here
Dr. Tetromino was made for TIC-80, a fantasy console: an imaginary 1980s-style computer with a 240 by 136 screen and 16 colours, for which independent developers write new games. Wojciech Graj published it in 2023 and it runs here in the official TIC-80 web player. Click Play, press any key on the title screen and then go through the options. Use Up and Down to pick a row and Left and Right to change it. On the START row, Left or Right starts the game. The two tunes are old music in the public domain, and the music menu can turn them off. Esc opens the TIC-80 menu.
Controls
| Key | Action |
|---|---|
| Left / Right | move the piece (hold to repeat) |
| Down | drop faster |
| Z | rotate counter-clockwise |
| X | rotate clockwise |
| Up / Down (options) | choose a row |
| Left / Right (options) | change the value; on START, begin |
| Esc | TIC-80 menu |
A few things worth knowing
Start with three colours and a short line. The defaults (lines of 3, four colours) are a good middle ground. Fewer colours make matches easy, and longer lines make the game a lot harder.
Plan for the fall. When a line disappears, the rest of its pieces drop. Leave gaps that the falling bits can fill with matching colours and you get chains.
Watch the level. It rises every ten clears and the pieces fall faster each time.
Credits and licence
Dr. Tetromino was created by Wojciech Graj, who made the code and the graphics. It is free software under the GNU Affero General Public License, version 3 or later. The cartridge holds the game's readable Lua source, and the author's repository is hosted alongside the game. The two tunes in the music menu, "Korobeiniki" and "Troika", are old pieces in the public domain. It runs here in the TIC-80 web player (MIT licence). The licence text and the source code are linked from this page.