Website wants you to disable ALL browser extensions, including security, anti-tracking, etc. claiming you have a "modified client". This leaves your browser wide-open for any attack it wants to hit you with. This is very poor policy at the very least, and HIGHLY SUSPICIOUS. Being an apparently addictive game, especially for children, only raises the threat. Even if it is demanding all extensions be disabled stupidly and not maliciously, it leaves the browser open to attacks until defenses are re-enabled and therefore should be shunned.
-Gaming .io (British Domain) website
Similar to other .io games, such as:
10/10 for SAFETY
Online .io website intended for gaming.