🏰 Tower Defense

How to play

Enemies walk a fixed route across the map from the left edge to the right, and each one that reaches the end costs you a life. You spend gold on towers placed beside the route, which fire automatically at anything inside their range. Build first, then release the wave, and use the gold the kills earn to strengthen the line before the next one.

• Basic ($25) — 10 damage per shot, moderate range, one shot per second.
• Rapid ($50) — 5 damage but more than twice the fire rate, and the longest range of the three.
• Heavy ($100) — 40 damage per shot with the shortest range and a slow reload.
• Map tiles — click or tap an empty tile to build the selected tower there. Path tiles and occupied tiles are refused.
• Start Wave button — releases the next wave. It is disabled while a wave is running.
• New Game button — clears the map and returns you to 150 gold and 20 lives.

Scoring

Every enemy destroyed adds 10 to your score and pays gold worth 10 plus twice the wave number. Clearing a wave pays a further 30 gold bonus. Waves grow steadily: wave one sends eight enemies with 80 health, and each wave after adds three more enemies, 30 more health and slightly more speed. You start with 20 lives and lose one for each enemy that walks off the far end.

Tips

• Build at the corners of the route. A tower on the inside of a bend covers two stretches of path at once and gets far more shots off.
• Basic towers give the most damage per gold spent, so several of them early beat saving up for one expensive tower.
• Keep Heavy towers for the late waves, where enemy health runs into the hundreds and small hits cannot keep up.
• Spend between waves, not during them. The Start Wave button waits for you, and gold sitting unspent does nothing.

Frequently asked questions