Play the bunker
Lean left and right around cover, crouch, lay down flat, and slide in off a sprint. Aim down the marker for the long shot down the snake.

Speedball paintball. One hit and you're out. Lean around the bunker, snap-shoot, hang the flag.
Grindzone is speedball paintball in 3D: an inflatable bunker field, a breakout sprint off the start station, and snap-shots around the edge of cover. Lean out, tuck back in, slide into the next bunker, and hang the flag on their station.
Make a room and send the code, or step on against bots that actually play speedball. They run to a bunker, tuck in crouched, peek out on a cycle and drop paint on anyone who stands still.
Lean left and right around cover, crouch, lay down flat, and slide in off a sprint. Aim down the marker for the long shot down the snake.
Every hit counts and leaves its paint. A striped ref walks the sideline and points at every one.
They pick a bunker, tuck in, peek on a cycle and punish anyone who stands still, so solo practice still feels like a match. Keep moving and they miss.
Inflatable bunkers, netting hung with banners (the host sets the text), a crowd in the stands and floodlights for night games.
When a point ends the camera lifts into a slow orbit over the field, the crowd roars, then drops you back on the line for the next breakout.
Pick your helmet and marker colors and your number, plus a jersey color for Free For All. Your eliminations, hits taken, wins and hit rate are saved.
Captured in-game. Click to enlarge.
Classic speedball. One hit, you sit. Wipe the other team to take the point.
Grab the flag at the 50 and hang it on the other team's station. Hit players respawn after 5 seconds.
Red against blue, respawn after 3 seconds. Most eliminations wins.
Everyone for themselves, respawn after 3 seconds. Most eliminations wins.
Mouse and keyboard on desktop. Everything below is shown in the game too.
| Move | WASD |
|---|---|
| Look and aim | Mouse |
| Shoot | Click |
| Aim down the marker | Right click |
| Lean | QE |
| Crouch | C |
| Lay down | X |
| Slide while running | ShiftC |
| Jump or stand up | Space |
| Sprint | Shift |
| Reload from a pod | R |
| Scoreboard | Tab |
On a phone: drag the left half to move, the right half to look, and use the on-screen buttons to fire, jump, lean, crouch and go prone.
Every Grindzone guide we have written, checked against the game itself.

How to play Grindzone, the free speedball paintball game: making a room, every control on desktop and phone, paint, the HUD, the four modes and the breakout.
Read the guide
Every Grindzone mode explained: Elimination, Center Flag, Team Deathmatch and Free For All. Exact rules, respawn timers, scoring and how to win each one.
Read the guide
Practical Grindzone tips: the breakout, leaning, snap-shooting, paint drop, which bunkers hide you in each stance, how bots peek, and whether weather matters.
Read the guideYes. Grindzone is free to play in your browser on desktop and phone, with no download or account.
Yes. Tick "Practice solo against bots" in the lobby to play offline against bots, or make a room and let bots fill out both teams.
Leave the room code blank to create a room, then share the four-character code from the top right of your screen. Friends type that code in the lobby to join.
One. Any paintball that touches an opponent takes them out, and there is no friendly fire in team modes.
No. Weather and time of day change how the field looks and sounds, but paint and movement work the same in every setting.
Free in your browser. Make a room, send the code, and hang the flag.