Domino Duel

Tower Swap is a clever puzzle game combining match-3 mechanics with addictive tower defense gameplay. Stop the dragons from reaching your castle by building your defenses through tactical tile-matching decisions.
How to Play
Build your defenses
Match 3 pieces of the same resource to upgrade them to a weapon or defense piece. When you have 3 of the same weapon or wall beside each other, you can merge them to create more powerful units. However, merging also means less coverage over the map, so sometimes you should delay the decision to merge.
Protect your castle
You have a limited number of swaps available before the dragons attack, so you have to use them wisely. Position your defenses so you can weather the attack! Before the boss round the game will show an arrow indicating the area where the drag will appear. Day 10 and day 20 are the first boss dragon levels, so you need to be prepared. Once you kill a boss, they release a large number of smaller dragons.
Combine resources
Combine 3 of these resources to build the following defenses:

Stone - creates a defensive attack tower
Gunpowder - builds a cannon
Ice - creates an ice wall
Logs - creates an attack turret
Gold - forms a chest containing swaps and sometimes other items like TNT and anvils to immediately upgrade resources.

All of the created defenses above can then be merged again to build an even more powerful unit.
Sign up and join a clan
It's worth signing up for an account in Tower Swap! It is a simple process and will allow you to build a custom avatar using extensive options, join a clan to compete, earn gold, and unlock chests with rewards. At the end of each game you'll receive gold coins that you can use to buy lives and open chests early.
More Games Like This
Tower Swap is a unique game that combines elements from match-3 games and tower defense games. One of the most popular tower defense games is Tower Defense Clash. As for merge games, Farm Merge Valley is hard to beat!
Features

Unique mix-up of game genres
Create defenses by merging resources
Upgrade defenses by merging defenses
Protect your castle from endless waves of dragons!
Sign up to join a clan and more

Developer
curtastic developed Tower Swap.
Platforms

Web browser (desktop and mobile)
Android
iOS
Last UpdatedOct 02, 2025Controls
Tap or click and drag only. Any tile can be swapped even if it doesn't make a match.Gameplay Video

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Platform
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