Tetra Online

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Tetra Online
Tetra Online logo.svg
Developer(s)Tetra Dev Studio
Platform(s)Windows, Linux, macOS
ReleasePublic Alpha
June 13, 2020
Early Access Release
November 30, 2020
Offline Build
June 18, 2021
Gameplay info
Next pieces5
Playfield size10 × 20
Hold pieceYes
Hard dropYes
Rotation systemSRS with modified I wallkicks
Tetra Online title.png
Tetra Online ingame.png

Tetra Online is a multiplayer fan game by Tetra Dev Studio, inspired by Puyo Puyo Tetris. The game was removed from Steam on December 9, 2020, due to a DMCA notice filed by The Tetris Company. An offline version of the game (single player only) is available on GitHub since June 18, 2021.

Gameplay

Tetra Online is a Guideline-based game that has three standard single-player modes and one multiplayer mode.

Modes

  • Endurance: Standard 150-line Marathon mode.
  • 40L: Time attack mode.
  • Score Challenge: 2-minute score attack mode.
  • Versus: Standard 1v1 multiplayer mode with garbage line attack system.

Rotation System

Tetra Online uses a modified version of SRS, in which the kick tables for the I piece are mirrored from the left side. This allows for symmetrical wall kicks similar to Tetris The Grand Master 3 Terror-Instinct; however, the way the kick table is mirrored allows several situational placements that are impossible in regular SRS to be executed effectively.

..........
----......
.GG.GGGGGG
.GG.GGGGGG
IGGGGGGGGG
IGGGGGGGGG
IGGGGGGGGG
IGGGGGGGGG
As in Guideline SRS, the shown placement can be achieved by rotating clockwise.
..........
......----
GGGGGG.GG.
GGGGGG.GG.
GGGGGGGGGI
GGGGGGGGGI
GGGGGGGGGI
GGGGGGGGGI
In the symmetric position, this can now be achieved by rotating clockwise or counter-clockwise.
..........
..........
..........
..........
....-.....
....-.....
...L-..ZZ.
.LLLIIIIZZ
Likewise, this placement is possible in the symmetrical kick system where the regular SRS would fail to execute.

External links