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Space Merge Defense (3 Match) is a strategic defense game where you merge objects, build powerful towers, and carefully position your defenses to stop incoming enemies.
Combine matching materials and towers to upgrade them into higher tiers. Each tower has its own attack pattern and role, so placement matters just as much as raw power. Use Ballistas for strong vertical attacks, Cannons to control horizontal lanes, Archers for flexible targeting, and Ice Towers to slow down advancing enemies.
Build your own strategy and see how far you can go.