"Knife.io" is an online multiplayer game where players control a character armed with a knife, and compete against each other to be the last one standing. The game typically takes place on a small circular arena, with players trying to eliminate their opponents by throwing knives at them.
In Knife.io, players can collect power-ups that can increase their strength or give them special abilities, such as throwing multiple knives at once or throwing explosive knives. The game is free to play and can be found on many gaming websites.
To play Knife.io, simply search for it on your preferred gaming website or visit the official Knife.io website if one exists. Once you've found the game, you should be able to start playing immediately.