Rainbow Tower Defence Demo
About this game
This is the demo page for Rainbow Tower Defense.
The demo features 10 stages out of the 60 stages (with more to be added) included in the full version. We also plan to offer additional event stages in the future to conduct difficulty testing.
In this demo, 3 types of line and tower content are available as a preview. The full version is expected to provide at least 10 or more types of lines and towers.
[Story]
The day they rained down from the sky like hail, it seemed like the end of everything. They targeted only our vital infrastructure—power lines, building supports, and major bridges—dismantling the civilized world in an instant. Just as humanity fell into total despair, Dr. Strings made a breakthrough discovery.
These invaders are mindless entities that perceive nothing but color. They possess a singular, primal instinct: to swarm toward 'Lines' like moths to a flame. Now, humanity begins its counterattack, centered around the elite 'Liners.'
[Game Overview]
Don't just build towers. The 'Lines' you draw between them are your most powerful weapons. Combine the energy of six distinct colors with unique hero towers to quell the relentless waves of monsters.
[How to Play]
Connecting towers creates a line of the same color.
Attack monsters using lines that match their color!

You cannot attack if the colors do not match.

However, you can also mix colors to attack (though the damage will be lower...).

[Create endless possibilities with various towers and lines across six different colors]

[Upgrade your lines and towers after clearing each stage to defeat even more powerful foes]

[Key Features]
Innovative 'Line Connection' System: In this game, towers themselves do not attack. It is the 'Lines' drawn between them that strike down the enemy.
Strategic 6-Color Combinations: Deep tactical possibilities are hidden within intuitive rules: matching, mixing, and drawing lines.
Unique Heroes (Liners): Every stage is a new puzzle. Deploy 'Liners' with distinct abilities and position their lines to find the perfect winning combination.
A Test of Agility and Decisiveness: Victory hinges on your ability to adapt your strategy to monster combinations, the decisiveness to survive sudden crises, and the agility to react to the incoming horde.
Achievements
View all 9 →Blasting
6.1%Reach bomb tower level 3
Simply strong
6.8%Reach chain line level 5
Golden field
7.6%Construct the yellow line 70 times
Rising Star!
7.6%Reach Spiral line level 5
Easy mode is nothing!
8.3%Clear the Last Refuge boss on Easy mode

Building towers is only the beginning. In this innovative tower defense, you must draw powerful 'Lines' between your towers to halt the enemy advance! Strategically deploy towers of the right colors and combine functional lines to create an impenetrable defense against the approaching monster hordes