Portugues
EntroPipes
Saved games stay in this browser only.
About the game
EntroPipes is a pipe-connecting puzzle. Each grid is filled with pieces of pipe: straight sections, bends, T-junctions, crosses and dead ends. They start out turned every which way, and your job is to rotate them until every open end touches another one and no pipe leaks out of the network. The game measures this as "entropy": when it reaches zero, the puzzle is solved.
There are four grid sizes, 4 by 4, 6 by 4, 6 by 6 and 8 by 6, with 20 puzzles each. A session is a race against the clock. You start with two minutes; every solved grid adds ten points for each second left and puts 30 more seconds on the timer, and the next puzzle appears. The run ends when time runs out or when you clear all 20 grids of that size.
Playing it here
EntroPipes 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. It runs here in the official TIC-80 web player. Click Play, pick a grid size with Left and Right next to "Play" and press Z.
The best score for each grid size is saved in this browser and shown under Top score. Esc opens the TIC-80 menu. A gamepad works directly, and on touch screens an on-screen D-pad and buttons appear.
Controls
| Key | Action |
|---|---|
| Arrow keys | move the cursor over the grid |
| Z (A button) | rotate the selected pipe a quarter turn; confirm in menus |
| A (X button) | pause and resume |
| Up / Down (menu) | choose Play, Top score, How to play or Exit |
| Left / Right (menu) | choose the grid size |
| Esc | TIC-80 menu |
A few things worth knowing
Start at the edges. A pipe on the border can never point out of the grid, and a corner piece has only one way to sit. Fix those first and the middle falls into place much faster.
Speed pays twice. Every solved grid both scores the seconds you have left and adds 30 seconds, so finishing a small grid quickly gives you a cushion for the harder ones that follow.
The cursor wraps around. Moving past one side of the grid brings the cursor back on the other side, which saves a few presses on the bigger boards. The Exit option is meant for the desktop version; here it simply stops the cartridge.
Credits and licence
EntroPipes was created by Alfonso Saavedra, known as Son Link, who wrote the code and made the graphics and the puzzles. It is based on an original idea by Z80St Software. The game is free software under the GNU General Public License, version 3, and the author's repository at the version served here is hosted alongside the game as its source code. It runs here in the TIC-80 web player (MIT licence). The licence text and the source code are linked from this page.