Mergehold: Tower Defense

Two towers become one. One tower becomes a fortress.

Mergehold is a fantasy tower defense game built on a single satisfying move: drag one tower onto another of the same rank and watch them fuse into something far deadlier. Every rank hits more than twice as hard as the one below it — and frees a slot on your board. Merging always pays off. Knowing WHEN to merge is what separates a held keep from a fallen one.

MERGE TO GROW STRONGER
Buy towers, match them by colour and rank, and fuse your way up eight tiers. Archers, cannons, ice, lightning, flame, poison, marksmen and gold towers each change how a board plays. Space is tight. Every merge is a decision.

HOLD THE KEEP
This is not a game you watch. Raiders stop on the road and smash your towers to rubble. Throwers plant themselves at range and hurl rocks, fireballs and spell orbs at your line. Runners sprint past your slow guns. Armoured tanks soak everything you have. Read the incoming wave, then answer it.

10 REALMS, 120 LEVELS
March from the Dark Forest through the Poison Marsh, the Scorching Desert, the Dragon's Nest and on to the Doom Gate. Sixty monsters, each realm with its own creatures, palette and boss — goblin chieftains that split when they fall, demon lords that enrage at half health, ice kings that armour up mid-fight, wraiths that blink through your kill zone.

FORGE YOUR WAR CHEST
Gems buy permanent upgrades that carry into every run: damage, starting gold, tower durability, income. Unlock new tower types, boost the ones you love, and open star chests as you clear the campaign with three stars.

MORE TO CHASE
Daily quests, 15 achievements, a full bestiary that fills in as you kill, and a victory chest after every level.

PLAYS YOUR WAY
Portrait, one hand, no account required. Nine languages. Works offline once installed.

Free to play. Rewarded ads are always optional — watch one for gems or a second chance, or skip them entirely. Optional in-app purchases are available for players who want to move faster.

Merge. Empower. Defend.