1. Delivery: Mount the hack, adjust slider trajectory angle (-5° to +5°), set release weight (Guard, Draw, Hack, or Takeout), and choose In-Turn (curls right) or Out-Turn (curls left).

2. The Free Guard Zone (FGZ): For the first 5 rocks of an end, opponent stones sitting in the guard zone (between the hog line and tee line, not biting the 12-foot circle) cannot be eliminated. Doing so returns the guard and removes the shooter!

3. Sweeping Physics: Brushing heats the ice surface via friction, melting microscopic pebble ridges. Sweeping extends travel distance and straightens the curl trajectory to hold line!

4. Scoring & The Hammer: Each end consists of 16 delivered stones (8 per team). The team with stones closest to the center button scores 1 point for each stone closer than the opponent's best stone. The team that scores surrenders the hammer (last stone advantage) for the next end.

5. Controls: Use mouse sliders or Arrow Keys / A-D to aim, W-S to adjust weight, SPACEBAR to deliver stone and sweep, and C or 1-4 to switch camera views.