Buy troops, merge equal units to level them up and hold the line against ever larger waves with a boss every five rounds.
Buy units in the shop and drag one onto an identical one to merge them into a stronger unit. Your board has limited slots: merge to make room.
Each wave is tougher and every fifth brings a boss. Position your best units before the fight starts.

Mergefront is a merge auto battler: buy warriors, archers, squires, spearmen and mages from the shop, drag equal units together to merge them into higher star ranks and place your best fighters on the board. When the battle starts your army fights the wave on its own, so the real strategy happens before the first blow lands. Every fifth wave brings a boss, each lost battle costs a life and your best run is always waiting to be beaten. Plays in your browser on desktop and mobile, in English and Spanish.