TetriFast 1.14

TetriFast 1.14 (v19)

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Room: Lobby Spectator

Slot 1: Player

NEXT PIECE

LINES

LEVEL

AVG LEVEL

ATTACK LOG

MODERATOR CONTROLS

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

SPECIAL: None

[1-6] Use on slot · [D] Discard

Hall of Fame / Win List

Rank	Type	Player / Team	Score
No scores yet

Audio & Sound Configuration

Enable Sound Effects (WAV) Enable MIDI Background Music

Keyboard Controls

Customize keys for Left, Right, Rotations, Drops, Specials, and Discard:

Live Game Sessions

Room Name	Status	Players	Spectators	Moderator	Action
Scanning for sessions...

Create New Game Session

Room Name:

Player Profile

Nickname: Team:

Match Rules & Game Settings (Moderator Only)

Starting Level:

Lines / Level:

Level Increase:

Lines / Special:

Specials Added:

Inventory Cap:

Initial Stack:

Sudden Death:

m s

Classic Rules: Multiplayer line attack without specials

Average Levels: Dynamic game speed averaged over active players

Game Session Controls

Objective & Level Progression

TetriFast 1.14 is a 6-player real-time multiplayer TetriNET game played on a 12 × 22 field. Guide falling tetromino pieces into complete horizontal lines to clear them, collect special blocks, and outlast all opponents.

Survival Victory: If a newly spawned piece collides with stacked blocks at the top of your field, you are eliminated. The last surviving player (or team) wins the round.
Levels (1–100): Every Lines / Level cleared advances your level by Level Increase, accelerating piece drop speed up to Level 100.
Click-to-Focus: Click any opponent's mini-field on the Fields (F1) tab to inspect it on the primary canvas; click your own mini-field to return.

Keyboard Controls (Customizable in Misc → Key Configuration)

Move Left / Right: ← / →

Rotate CW / CCW: ↑ / Ctrl

Soft Drop (1 Row): ↓

Hard Drop (Instant Lock): Space

Use Special on Slot 1–6: Keys 1 – 6

Discard Front Special: D

In-Game Chat Focus: T (Enter to send, Esc to cancel)

Switch Tabs: F1 – F7

Special Blocks & Inventory Mechanics

Clearing lines triggers special block spawns on random existing tiles of your board (based on Lines / Special and Specials Added). When you clear a line that contains one or more special blocks, those specials are added to your 18-slot FIFO inventory (multiplied by the number of lines cleared simultaneously). Always activate or discard the first (leftmost, red-outlined) special in your queue using keys 1–6 or D.

Name	Type	Effect on Target Player's Field (Slots 1–6)
Add Line	Attack	Pushes the target's stack up by 1 row and inserts a garbage line with 1 random hole at the bottom.
Clear Line	Defense	Deletes the bottom-most row of the target's field and shifts all upper rows down by 1.
Nuke Field	Defense	Completely wipes all blocks from the target's entire 12 × 22 field, leaving a clean slate.
Random Clear	Attack	Clears up to 10 random cells on the target's field (can create awkward holes or remove helpful tiles).
Switch Fields	Swap	Swaps your entire board state with the target player's board. Any rows in the top 6 danger zone are cleared on both boards after swapping.
Clear Specials	Attack	Converts all special block spheres currently sitting on the target's board into ordinary solid blocks.
Block Gravity	Defense	Pulls all floating blocks straight down to fill empty gaps in every column, then automatically clears any completed lines.
Blockquake	Attack	Randomly shifts each row on the target's field left or right by 1–3 columns, scrambling stack alignment.
Block Bomb	Attack	Detonates every Block Bomb currently on the target's field, scattering surrounding 3 × 3 neighbor tiles into empty cells.

Game Rules & Server Modes

Classic Rules: Multi-line clears send penalty garbage lines directly to all opponents: 2 lines → +1 line, 3 lines → +2 lines, 4 lines (Tetris) → +4 lines.
Sudden Death: When configured (`m`/`s` > 0), once the Sudden Death timer elapses, 1 garbage line is added to every surviving player's field periodically until a winner is decided.
Average Levels: Dynamically sets the active fall speed of the session to the arithmetic mean of all surviving players' levels.

Teams, Winlist Scoring & Room Moderators

Teams: Players who set the same non-empty Team name (in Client or Partyline) fight together. A match ends when all remaining survivors belong to the same team, and Classic penalty lines do not hit teammates.
Winlist Points: At the end of a multiplayer match, points are awarded to the Winlist: 3 pts for 1st place, 2 pts for 2nd place, and 1 pt for 3rd place.
Room Moderator (*): The creator of a room (or the longest-tenured player if the creator leaves) holds the Moderator role and can configure Server (F6) rules, start/pause/stop games, or kick/ban disruptive players.

Credits & Community

Special thanks to St0rmCat for creating the original TetriNET (1997), and to dds for creating the zero-delay TetriFast modification (1998) & Olivier Vidal for the 1.14 protocol (2003). For TetriNET history, downloads, and community resources, visit tetrinet.us.

TetriFast 1.14 — Changelog

v19 (2026-11-07)
- Enabled "Classic Rules" and "Average Levels" by default and fixed the "Apply Settings to Session" button press animation.
v18 (2026-11-07)
- Added <nickname> won! ⭐ to the Attack Log when a game ends and prevented post-game winner elimination logs.
- Added the Changelog (F8) tab with a scrollable running list of all project updates.
v17 (2026-11-07)
- Boosted the win fanfare and loss "womp womp" sounds to maximum volume with synthesized WAV fallbacks and MIDI ducking.
- Added automatic client version detection (version.json) to bust browser caches on new deployments.
- Guarded server and client elimination handling so simultaneous top-outs cannot overwrite the winner's state.
v16 (2026-11-07)
- Fixed horizontal movement and soft-drop timers so pressing Left/Right against a stack never stalls falling pieces.
- Added a 400ms slide grace period upon touching a surface so pieces can still be nudged on high stacks.
- Displayed a "WINNER!" banner on the winning player's field at game end instead of "GAME OVER".
- Added synthesized brass trumpet fanfare (win) and sad trombone "womp womp" (loss) sound effects.
v15 (2026-11-07)
- Added a minimum 800×640 viewport warning overlay when the browser window is too small.
v14 (2026-11-05)
- Applied the random-block elimination board replacement to the eliminated player's own local field.
v13 (2026-11-05)
- Restored (F1)–(F7) shortcut labels on tab buttons and bounded the Attack Log scroll height.
v12 (2026-11-05)
- Added a Partyline welcome message, ?room= URL auto-joining, and a "Copy URL" room-sharing button.
v11 (2026-11-05)
- Scaled Fields tab canvases to fit within their surrounding boxes across browser zoom levels.
v10 (2026-11-05)
- Made the Partyline roster context-aware with online user locations and set Partyline (F2) as the default startup tab.
v9 (2026-11-05)
- Added the Help (F7) tab with vector special block icons, controls reference, and community credits.
v8 (2026-11-05)
- Added the "PAUSED" field banner and the 22-row closing curtain animation with a "GAME OVER" banner.
v7 (2026-11-05)
- Fixed Web Audio MIDI background music loop scheduling and node cleanup.
v6 (2026-11-05)
- Refined Client, Misc, Server, and Fields tab layouts and streamlined the Docker backend image.
v5 (2026-11-05)
- Sized the application window to 90% of the browser viewport (90vw × 90vh).
v4 (2026-11-05)
- Fixed a session-state update bug in the client controller and added automated boot tests for all JavaScript modules.
v3 (2026-11-05)
- Sized the application window to 80% of the browser viewport (80vw × 80vh) and connected the web client to the live multiplayer WebSocket backend.
v2 (2026-11-05)
- Made the application window and tab panels resize dynamically to fit the browser viewport.
v1 (2026-11-05)
- Launched the TetriFast 1.14 Web Edition with authoritative multiplayer server, 6-player fields, special blocks, and Win95 UI.