See piece > Plan placement > Move piece > Look at piece to confirm placement > Next piece. (Delay: ~150ms)
: The sound for the "Surge" mechanic changes as a Back-to-Back (B2B) streak hits thresholds of 4, 8, 12, and 24, indicating the escalating power of the player's attacks. Customization and Community Modding tetr.io sfx
Because TETR.IO is web-based, the audio system can occasionally struggle under heavy load: See piece > Plan placement > Move piece
TETR.IO allows you to upload custom sound files (typically .ogg or .wav ) for almost every in-game event. This has led to a booming community of "sound pack" creators. This has led to a booming community of "sound pack" creators
When an opponent sends lines, a warning gauge appears on the side of the board accompanied by a digital, rising beep. The volume and sharpness of this beep scale directly with the number of incoming lines. A 4-line attack sounds urgent; a 20-line spike sounds catastrophic.
SFX stands for . In the context of TETR.IO, these are the distinct audio cues generated by in-game actions. Unlike the background music (BGM) which sets the mood, SFX provide functional feedback.