Guerrillas.io

Grab a rifle, drop into a blocky battlefield, and outshoot everyone with quick slides and hair-trigger aim in this fast-paced .io shooter.

You spawn in, grab a weapon, and start hunting. Guerrillas.io drops you onto a small map with other players and zero hand-holding. The goal is simple: kill or be killed. Controls are tight — WASD to move, mouse to aim and fire, Space to jump, Q to slide, Shift to run. It sounds basic but the slide mechanic changes everything. You can duck under incoming fire, reposition fast, and catch people off guard. Weapon choice matters more than you'd think. Slot 1 is usually a rifle, slot 2 a shotgun for close range, slot 3 something heavier. I kept dying until I learned to switch mid-fight. A slide into a shotgun blast is the most satisfying thing on the pixel battlefield. The map has some cover but not much, so aggression usually beats hiding. There's also a bit of chaos from the multiplayer: players come and go, sometimes you'll see a 5-kill streak, other times you spawn right next to a guy with a shotgun. What I like is the purity. No battle pass, no loot boxes, just quick rounds where your reflexes decide the outcome. It's a game you can play for ten minutes or an hour. The pixel art gives it a retro feel that never gets old. If you've played other .io shooters, this one feels faster and more responsive. Just watch out for the guy who's been camping the same corner for five minutes.

Move using the WASD or Arrow keys. Fire with a Left mouse click. Aim with a Right mouse click. Jump using the Space key. Slide while running by pressing the Q key. Run by holding down the Left Shift. Change weapons using the 1, 2, 3 keys.

Slide (Q) into fights—it lowers your hitbox and throws off aim. Don't ignore weapon switching: shotgun at close range beats rifle spam. Keep moving; standing still makes you an easy target on open maps. Use Shift to run between cover, but don't sprint into unknown corners. Jump while firing to make your own hitbox harder to track. Watch kill feed to know where the action is and avoid spawn traps.

Q: Is Guerrillas.io free? A: Yes, it's free to play in your browser with no download needed. Q: Can I play Guerrillas.io on mobile? A: Mobile support is limited; it plays best with keyboard and mouse on desktop. Q: Do I need to create an account? A: No account needed, just load the page and join a match instantly. Q: How do I change weapons? A: Press the 1, 2, or 3 keys to switch between your three weapon slots. Q: What does the slide do? A: Press Q while running to slide, which ducks under bullets and gives a quick burst of speed. Q: Is there a single-player mode? A: No, it's multiplayer only; you'll always face real players online.