Tetr.js

Tetr.js is a JavaScript based browser game. Its customizability, speed and replay system makes it an excellent client to play 40 lines sprint. However, this is pretty much the only thing you can do.

Gameplay
Tetr.js uses modern guideline rules: Bag Randomizer, Hold feature, 6 Previews, SRS rotation system including kicks, Lock delay. Controls are customizable. Some settings are customizable, too. Among others: left/right autorepeat speed & delay (ARR, DAS) and lock delay. Tetr.js also allows you to rewatch the last game you've played.

Modes
There are only 2 modes:


 * Sprint: clear 40 lines as fast as possible
 * Dig Race: downstack the 10 given garbage lines as fast as possible

Farter's Dig Mod
This is a Tetr.js modification made by a different author. It comes with touchscreen support and new modes which are similar to Tetris Online Japan Driller mode: The player starts with an empty field but receives garbage lines in uniform intervals. The goal is to survive the incoming flood of garbage as long as possible.


 * Dig-500+: one garbage row every 3 seconds, up to 5 holes per row
 * Dig-1000+: one garbage row every 5 seconds, garbage rows are empty, just push the stack up
 * Dig-1500+: one garbage row every 1.5 seconds, 2 adjacent holes per row
 * *Monster*: one garbage row every 1 seconds, 1 hole per row

Possibly, garbage type and insertion speed may alter after a while. Not sufficiently tested (only tested with Dig-1000+).