TETR.IO

osktetr.io

Playtetr.io

Japanese needed

What it is

A site for versus falling-block puzzles. Besides matches where you send cleared lines to your opponent, you can also play solo for records.

One thing to know

You can be in a match with someone from anywhere in the world right after opening it.

Tags

#Versus

Added 2026-10-18

Similar games

Infinite Craft

Neal AgarwalNewHot

Combine water, fire, wind and earth to make almost anything. An AI decides each result, so it never runs out.

≤30 minSoloPhone OK

Play

2048

Gabriele CirulliHot

Slide numbered tiles together until you make 2048. The classic sliding puzzle.

No Japanese needed

≤5 minSoloPhone OK

Play

新・都道府県ゲーム

New Prefecture Game

まさと

Drop Japan's prefectures into a box and stick neighbors together to build Japan.

Japanese needed

≤5 minSoloPC

Play

GeoGuessr

GeoGuessr AB

Look around a Street View scene and guess where in the world you are.

Japanese needed

≤30 minMultiPhone OK

Play

3億分の1

1 in 300 Million

satoru.net

An online 3D race where you play a sperm cell heading for the egg.

No Japanese needed

≤5 minMultiPC

Play

slither.io

Steve Howse

Eat glowing orbs as a snake and trap other snakes to grow.

No Japanese needed

≤5 minMultiPhone OK

Play