Merge and Purge: Kill Zombies

The evacuation network has gone silent. Keep the last defense train rolling, merge your turrets and blast a path through the zombie hordes, one stop at a time.

MERGE TO POWER UP
Drag two matching turrets together on your 9-slot board to build a stronger one, all the way up to tier 30. Decide when to buy, when to merge and what your train needs before the next stop.

SIX WEAPON FAMILIES
• Sentry: reliable single-target fire
• Tesla Coil: lightning that jumps between the infected
• Cryo Cannon: slows the horde and freezes targets solid
• Flamethrower: a short-range cone that sets enemies burning
• Rocket Pod: homing rockets that blow apart whole packs
• Railgun: a charged beam that pierces a straight line
Unlock new families in the Arsenal as you advance. Each family merges with its own kind.

1,000 STOPS ACROSS 8 REGIONS
Ride from Amber Canyon and the Fallen Metropolis into Quarantine Forest, Frozen Pass, Iron Foundry, Ember Rift, Toxic Marsh and Neon Nightfall. Every region adds its own battle condition, from canyon crosswinds to deep freeze and blackout.

KNOW YOUR ENEMY
Face 30 kinds of infected, with elite, armored, exploding and spitting variants. Every 10th stop a boss convoy arrives, led by giants like the Railbreaker, the Plague Matron and the Frost Crusher. Every enemy you meet is added to your Field Guide.

TAKE CONTROL OF THE FIGHT
• Overdrive for bursts of rapid fire
• EMP Pulse to disrupt the horde
• Field Repair to patch your hull
Kills recharge your abilities. Mid-battle, install field upgrades such as Hot Barrels, Cryo Rounds, Bulwark, Deadeye and Repair Crew to shape your build.

RESEARCH, CONTRACTS AND REWARDS
• 9 research paths, from Ballistics and Reinforced Hull to Armor Piercing and Arc Rounds
• Optional contracts for bonus coins and medals: win with your hull above 80%, without Field Repair, or without any support ability
• Earn up to 3 stars on every stop and claim coin rewards on the Star Road

Merge. Defend. Survive.

Contains ads. Optional rewarded ads give an extra victory bonus when one is available.

Recent changes:
Merge & Purge 2.0 is a full rebuild: defend a moving train, drag to merge turrets and push through new regions against a new animated zombie cast. Build your weapon arsenal, upgrade through research, use combat abilities, take on contracts and fill your field guide. New sound effects and music, refreshed menus and victory rewards, optional ad bonuses, and migration support for progress from version 1.3.