The towers are necessary, but they do not attack.

The 'Line' connecting the towers becomes your weapon.

Draw lines of six different colors in the right places to suppress the waves of incoming monsters.

- Draw lines to block the enemy's path.

• When you connect two towers, a line of the same color is created.

• You can attack monsters of the same color. If the tower colors are different, a line that combines both colors is created. Since this line has half of each color, the damage is also halved.

- Equip the most necessary lines in the 6 color slots.

• Before the stage begins, place the lines you need into the color slots.

• If a Spiral Line is equipped in the red color slot, the red line will be installed as a Spiral Line when placed.

• Every line has unique skills. For example, the Spiral Line confuses monsters, and the Bomb Line performs an area-of-effect (AoE) attack.

- Strategically rebuild towers with the colors you need most.

• You can rebuild towers at any time. Rebuild them with colors that suit your strategic hotspots.

• Depending on the terrain, the most necessary color for that spot changes every time.

- Upgrade the towers in the most critical locations to be the most powerful.

• The stronger the tower, the stronger the connected lines become.

• You can improve the tower's attack power, durability, and the number and length of its connected lines.

• Reinforcing the towers in the most important positions is an essential requirement for victory.

Key Points

• 'Line Connection' System: In Rainbow Tower Defense, towers do not attack. You attack using the 'lines' connected to the towers.

• Strategic Combination of 6 Colors: Infinite strategic depth is hidden within the intuitive rules of color matching, mixing, and connecting.

• A Test of Reflexes and Decisiveness: Meticulous strategic choices tailored to monster combinations, the decisiveness to overcome crises at any moment, and the reflexes to respond to each wave of incoming monsters are the keys to victory.