73%Strong matchTower Dominion
87%3k87% positive reviews, Very Positive across 3k reviews·Tower Defense · Base Building
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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
Rainbow Tower Defence
SteamThe 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.'
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.
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...).



Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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The best games like Rainbow Tower Defence are Tower Dominion, Broken Universe - Tower Defense, Kingdom Rush Frontiers - Tower Defense, Emberward, and Hexguardian.
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