Linex – A daily challenge: placing pieces on a board that fights back

Name: Linex – A daily challenge: placing pieces on a board that fights back
Availability: InStock
Author: Humanista75

by Humanista75·Feb 24, 2026·82 points·38 comments

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AI Analysis

●MidCrowd PleaserCozy

Tetris-clone with daily rotation and friends leaderboards—engaging UX but crowded genre.

Strengths

•Progressive difficulty mechanic (board fights back via random blocked cells) adds genuine strategic depth beyond vanilla Tetris.
•Thoughtful daily reset system ensures fair competition; same pieces/order for all players removes RNG advantage.
•Satisfying tap-by-tap piece placement interaction provides tactile control, differentiating from auto-drop clones.

Weaknesses

•Core game loop is Tetris-derivative; Puyo Puyo, Columns, and dozens of mobile puzzle games occupy same space.
•No clear technical innovation or content moat—gameplay retention depends entirely on community/leaderboard adoption.

Post Description

Hi HN,

I wanted to share a web game I’ve been building in HTML, JavaScript, MySQL, and PHP called LINEX.

It is primarily designed and optimized to be played in the mobile browser.

The idea is simple: you have an 8x8 board where you must place pieces (Tetris-style and some custom shapes) to clear horizontal and vertical lines.

Yes, someone might think this has already been done, but let me explain.

You choose where to place the piece and how to rotate it. The core interaction consists of "drawing" the piece tap-by-tap on the grid, which provides a very satisfying tactile sense of control and requires a much more thoughtful strategy.

To avoid the flat difficulty curve typical of games in this genre, I’ve implemented a couple of twists:

1. Progressive difficulty (The board fights back): As you progress and clear lines, permanently blocked cells randomly appear on the board. This forces you to constantly adapt your spatial vision.

2. Tools to defend yourself: To counter frustration, you have a very limited number of aids (skip the piece, choose another one, or use a special 1x1 piece). These resources increase slightly as the board fills up with blocked cells, forcing you to decide the exact right moment to use them.

The game features a daily challenge driven by a date-based random seed (PRNG). Everyone gets exactly the same sequence of pieces and blockers. Furthermore, the base difficulty scales throughout the week: on Mondays you start with a clean board (0 initial blocked cells, although several will appear as the game progresses), and the difficulty ramps up until Sunday, where you start the game with 3 obstacles already in place.

In addition to the global medal leaderboard, you can add other users to your profile to create a private leaderboard and compete head-to-head just with your friends.

Time is also an important factor, as in the event of a tie in cleared lines, the player who completed them faster will rank higher on the leaderboard.

I would love for you to check it out. I'm especially looking for honest feedback on the difficulty curve, the piece-placement interaction (UI/UX), or the balancing of obstacles/tools, although any other ideas, critiques, or suggestions are welcome.

https://www.playlinex.com/

Thanks!