Mechanical Defense Line

Mechanical Defense Line is a tower defense game where you choose defensive towers to counter different enemy types and manage a formation of mecha to support your defenses. You can research upgrades, allocate global buffs and use systems that add special effects or give you ways to change the course of a battle.

Build your defenses

The game has over 50 defensive towers, including Blaster, Cannon, Sniper and Tesla. Each has distinct attack patterns and skill effects, so choosing combinations to match enemy types is key to survival. In the Mecha Hangar, you manage your mecha formation, equip weapons and upgrade mecha attributes; different mecha combinations can produce different effects in battle.

Research and upgrades

The Tech Lab lets you research and upgrade modules to unlock stronger defensive capabilities and special skills. You can allocate Stellar nodes for global buffs, with each node enhancing attributes across your defensive system. Fusing cores unlocks Modifiers that give your towers additional special effects.

Tactical systems

Use the Time Core to reset and rewind time, creating a chance to turn the tide at critical moments. In the Biolab, genetic mutation experiments can produce experimental Perks and new tactical options.

Game modes

Mechanical Defense Line includes the Main Campaign, Daily Quests, Weekly Challenges and Seasonal Events, among other modes. Completing challenges earns rewards that you can use to strengthen your defenses.