an update is required to connect to multiplayer servers. click here to update!
RETURN TO MATCH
MULTIPLAYER
play online with friends and foes
SOLO
challenge yourself and top the leaderboards
TETRA CHANNEL
leaderboards, achievements, replays and more
CONFIG
tweak your TETRIO experience
ABOUT
all about TETRIO
40 LINES
complete 40 lines as quickly as possible
BLITZ
a two-minute race against the clock
ZEN
relax or train in this neverending mode
CUSTOM
play, train and experiment by your rules
QUICK PLAY
scale the tower! how far can you get?
TETRA LEAGUE
fight players of your skill in ranked duels
CUSTOM GAME
create public and private rooms to play by your rules
ROOM LISTING
join public games
BY
puzzle together in this modern yet familiar online stacker. play against friends and foes all over the world, or claim a spot on the leaderboards - the stacker future is yours!
programming, graphics design, production, general development
SOUND TEST
test the RADIANCE audio system
SUPPORT TETRIO
support development or gift supporter status and get rewards!
MERCH STORE
browse the collection of all official TETRIO goodies!
TETRIO DESKTOP
get the desktop client for extra functions and improved performance
PATCH NOTES
follow development and see what's new
COMMUNITY DISCORD
follow updates on TETRIO, give feedback and have fun
DEVELOPER BLOG
follow updates on TETRIO and more
ISSUE TRACKER
report bugs and pitch ideas to improve TETRIO
MUSIC ROOM
listen to TETRIO background music
JOIN HARD DROP
join an extensive, vibrant community about all things stacker
LEGAL & ABOUT
read the TETRIO privacy policy, terms of service, rules and more
GET SUPPORT
get help, appeal bans, or otherwise talk to staff
© 2019 - 2025 OSK.
TETR.IO, THE TETR.IO LOGO, TETRA LEAGUE, OSK, AND THE OSK LOGO ARE TRADEMARKS OF OSK.
ALL OTHER TRADEMARKS ARE THE PROPERTY OF THEIR RESPECTIVE OWNERS, TRADEMARK FAIR USE DOCTRINES APPLY.
ROYALE
face off against the best in a single lobby shared by all!
PLAYERS (0)
ROOM NAME
welcome to TETRIO!
TETRIO is a free-to-win familiar yet fast-paced online stacker in the same genre as tetris, and played by millions across the globe.
play multiplayer games against friends and foes all over the world, or claim a spot on the leaderboards - the stacker future is yours!
your currently set keybinds are:
| move falling piece left | |
| move falling piece right | |
| soft drop | |
| hard drop | |
| rotate counterclockwise | |
| rotate clockwise | |
| rotate 180 | |
| swap hold piece |
you can change these and many other settings in CONFIG.
click on the tabs above to explore and/or change room options as you wish. have fun!
welcome to TETRIO!
TETRIO is a free familiar yet fast-paced online stacker in the same genre as tetris, and played by millions across the globe.
play multiplayer games against friends and foes all over the world, or claim a spot on the leaderboards - the stacker future is yours!
hover for more info!
your currently set keybinds are:
| move falling piece left | |
| move falling piece right | |
| soft drop | |
| hard drop | |
| rotate counterclockwise | |
| rotate clockwise | |
| rotate 180 | |
| swap hold piece |
you can change these and many other settings in CONFIG. have fun!
CHAT
#?
CHAT
TETRA LEAGUE STANDING
0 IN QUEUE - 0 IN GAME
estimated queue time: unknown
ENTER MATCHMAKING
LEAVING EARLY IS PUNISHED
HOW DOES IT WORK?
enter matchmaking and you will be matched up with a player of similar skill in a game of 1v1 VERSUS.
win games to gain TR and rank up! you must play at least 10 games to see your TR. to get a RANK and enter the GLOBAL LEADERBOARDS, keep playing consistently.
if you leave the game early at any point, you must rejoin immediately or you will be penalized. go conquer the ranks!
40 LINES
clear 40 lines in the shortest amount of time possible.
score doesn't matter here, just go for the world record!
PERSONAL BEST
OPTIONS
ADVANCED
BLITZ
get as many points as possible within 2 minutes!
clear lines to level up and gain more points and speed!
PERSONAL BEST
OPTIONS
ADVANCED
ZEN
relax or train in a neverending mode! your progress is stored across games.
adjust the feel or help train using the ZEN SIDEBAR.
you can undo and redo placements with CTRL+Z and CTRL+Y!
CUSTOM
play as you wish! replays are not submitted.
END RESULT
220
PERSONAL RANK
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COUNTRY RANK
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GLOBAL RANK
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THIS REPLAY IS DISPUTED
this replay has automatically been marked as suspicious by anti-cheat systems, and will be reviewed by staff. if this replay is legitimate, this message will automatically disappear.
STATS
HANDLING
ARR
2
DAS
12
SDF
6
VISIT THE TETRA CHANNEL SITE
VIEW FULL LEADERBOARDS, COUNTRY LEADERBOARDS, USER PAGES AND MORE
LEADERBOARDS
GLOBAL LEADERBOARDS FOR 40 LINES, BLITZ AND QUICK PLAY
ME
VIEW YOUR OWN RECORDS AND RECENT GAMES
PLAYERS
TETRA LEAGUE LEADERBOARDS AND XP
ACHIEVEMENTS
VIEW YOUR ACHIEVEMENTS AND THEIR PROGRESS
LIVE NOW
TETRA NEWS
LEADERBOARDS
ME
PLAYERS
only the first 100 are shown. to see the full leaderboard, click VIEW FULL above.
select a slot to feature an achievement on your profile
select an achievement to feature it, or select the slot again to cancel
ACCOUNT
change account settings
TETRIO DESKTOP
change settings for TETRIO DESKTOP
hover over a setting for more info
CONTROLS
| move falling piece left | LEFT, NUMPAD4 |
| move falling piece right | RIGHT, NUMPAD6 |
| soft drop | DOWN, NUMPAD2 |
| hard drop | SPACE, NUMPAD8 |
| rotate counterclockwise | CTRL, Z, NUMPAD3, NUMPAD7 |
| rotate clockwise | UP, X, NUMPAD1, NUMPAD5, NUMPAD9 |
| rotate 180 | A |
| swap hold piece | SHIFT, C, NUMPAD0 |
| forfeit game | ESCAPE |
| retry game | R |
| open chat | T |
| pick targeting strategy | 1, 2, 3, 4 |
| move in menus | UP (or W), DOWN (or S), LEFT (or A), RIGHT (or D) |
| confirm in menus | ENTER, SPACE |
| back in menus | ESCAPE, BACKSPACE |
| open social overlay | TAB |
| move falling piece left | A, NUMPAD4 |
| move falling piece right | D, NUMPAD6 |
| soft drop | W, NUMPAD8 |
| hard drop | S, NUMPAD5 |
| rotate counterclockwise | LEFT, NUMPAD7 |
| rotate clockwise | RIGHT, NUMPAD9 |
| rotate 180 | UP, NUMPAD2 |
| swap hold piece | SHIFT, NUMPADENTER |
| forfeit game | ESCAPE |
| retry game | R |
| open chat | T |
| pick targeting strategy | 1, 2, 3, 4 |
| move in menus | UP (or W), DOWN (or S), LEFT (or A), RIGHT (or D) |
| confirm in menus | ENTER, SPACE |
| back in menus | ESCAPE, BACKSPACE |
| open social overlay | TAB |
| move falling piece left | [NOT SET] |
[NOT SET] |
[NOT SET] |
| move falling piece right | [NOT SET] |
[NOT SET] |
[NOT SET] |
| soft drop | [NOT SET] |
[NOT SET] |
[NOT SET] |
| hard drop | [NOT SET] |
[NOT SET] |
[NOT SET] |
| rotate counterclockwise | [NOT SET] |
[NOT SET] |
[NOT SET] |
| rotate clockwise | [NOT SET] |
[NOT SET] |
[NOT SET] |
| rotate 180 | [NOT SET] |
[NOT SET] |
[NOT SET] |
| swap hold piece | [NOT SET] |
[NOT SET] |
[NOT SET] |
| forfeit game | [NOT SET] |
[NOT SET] |
[NOT SET] |
| retry game | [NOT SET] |
[NOT SET] |
[NOT SET] |
| open chat | [NOT SET] |
[NOT SET] |
[NOT SET] |
| targeting strategy even | [NOT SET] |
[NOT SET] |
[NOT SET] |
| targeting strategy eliminations | [NOT SET] |
[NOT SET] |
[NOT SET] |
| targeting strategy random | [NOT SET] |
[NOT SET] |
[NOT SET] |
| targeting strategy payback | [NOT SET] |
[NOT SET] |
[NOT SET] |
| menus: up | [NOT SET] |
[NOT SET] |
[NOT SET] |
| menus: down | [NOT SET] |
[NOT SET] |
[NOT SET] |
| menus: left | [NOT SET] |
[NOT SET] |
[NOT SET] |
| menus: right | [NOT SET] |
[NOT SET] |
[NOT SET] |
| menus: confirm | [NOT SET] |
[NOT SET] |
[NOT SET] |
| menus: back | [NOT SET] |
[NOT SET] |
[NOT SET] |
| open social overlay | [NOT SET] |
[NOT SET] |
[NOT SET] |
controllers can be set up in CUSTOM controls - just press the controller buttons you wish to bind.
HANDLING
ROTATION BUFFERING (IRS)
HOLD BUFFERING (IHS)
VOLUME & AUDIO
GAMEPLAY
ACTION TEXT
VIDEO & INTERFACE
GRAPHICS
CACHING
WEBGL MODE
NOTIFICATIONS
NOTIFY ME WHEN A FRIEND GOES ONLINE
NOTIFY ME WHEN A FRIEND GOES OFFLINE
NOTIFY ME WHEN A FRIEND SENDS ME A DIRECT MESSAGE
NOTIFY ME WHEN A NON-FRIEND SENDS ME A DIRECT MESSAGE
NOTIFY ME WHEN SOMEONE INVITES ME TO A ROOM
OTHER NOTIFICATIONS
CUSTOMIZATION
EXPORT SETTINGS
download a .TTC file of your config you can drag into TETRIO to import
MUSIC TWEAKER
select how often you want each song to be picked here, or ban songs if you so desire. click a song's title to play it.
ORDER HISTORY
view previous orders
AVATAR
a nice, 2MB max. image to represent yourself, or a generic identicon if none is chosen.
No avatar set
BANNER
a nice, 2MB max. image to display behind your profile and userpage. target resolution is 1920x240.
No banner set
ABOUT ME
write a little something about yourself to display on your userpage, or leave this blank to disable. simple markdown allowed.
COUNTRY
unknown
PRIVACY
WHO CAN ADD ME AS FRIEND
This does not apply retroactively.
WHO CAN SEE WHETHER I'M ONLINE
e.g. "Online", "Away", "Offline". People who cannot see whether you're online cannot invite you to rooms either.
WHO CAN SEE WHAT I'M DOING
e.g. "Playing 40 LINES", "In TETRA LEAGUE queue", "In Menus"
WHO CAN SEE WHAT ROOM I'M IN
e.g. "In QUICK PLAY lobby", "In a public custom room". People who can see what room you're in can also quickly join said room. Private rooms are always hidden.
WHO CAN SEND ME DIRECT MESSAGES
Direct messages from non-friends show up on the NON-FRIENDS tab in the social overlay.
WHO CAN SEND ME INVITES TO ROOMS
To be able to send you an invite, others will also need to be able to see whether you're online.
USERNAME
this is the name you will show up to others as.
this email account will be used for secure account actions, like account recovery.
you do not currently have an email set. if you lose your password, your account cannot be recovered!
PASSWORD
you can change the password used to log in here.
TWO-FACTOR AUTHENTICATION
two-factor authentication is NOT ENABLED.
CONNECTIONS
link other accounts with TETR.IO here, or remove them at any time.
? DISCORD
? TWITCH
? YOUTUBE
? X
? STEAM
TETRIO DESKTOP V
you are using the desktop client! this means you can:
• hit F11 to go FULL SCREEN
• hit F5 to reload TETRIO
• hit CTRL+SHIFT+I to open the CONSOLE
as well as edit options you see below
SAFE MODE IS ON - most system integration is disabled until next restart
PROFILE
GIFT
INVITE
JOIN
