Auto-fire is on by default. Just move with your left thumb. Your gun aims at the most dangerous zombie in range and keeps firing. To aim yourself, touch the right side of the screen. The corner buttons dash, throw a grenade, drop a turret and fire your special (the big button). Tap the weapon panel to switch guns; reload sits beside it. Prefer twin-stick? Pick Manual or Assist aiming in Settings.
WASD move · auto-fire aims for you, or hold click to aim and fire at the cursor · C special · Space/Shift dash · G or right-click grenade · E turret · R reload · Q, 1-3 or the wheel switch weapons · P/Esc pause
Clear every wave, or stay alive until the timer runs out. Fast kills build a streak that multiplies your score and charges your turret. Dashing makes you invulnerable for a moment. Red barrels explode when you shoot them.
After every cleared wave, and during survival levels, you pick 1 of 3 power cards: damage, fire rate, vampire healing, orbiting saws, a drone buddy, chain lightning and more. They stack for the rest of the run. Rare and Epic cards are the strongest.
Your special recharges over time, and kills make it recharge faster. Unlock, equip and upgrade specials in the Armory.
Each level has 3 stars: clear it, finish with at least half your health, and complete the bonus objective. Spend coins in the Armory on guns, gun upgrades, specials and survivor upgrades. In Endless a boss shows up every 5 waves.