Sword.io is a fun HTML5 multiplayer Io game like Battle Royale Fortnite. Collect swords after you take part in the new match unblocked with other people to defend yourself. They will be the primary weapon that you need to own if you’d like to conquer the leaderboard with the most kills. Play Sword.io free online you must survive at all costs before you climb up to the highest position! In addition, you can upgrade your character when you progress. Good luck!