Mutant Plants Vs Zombie is a free online tower defense game where you deploy and upgrade mutant plants to stop relentless waves of attacking zombies. Drag plant cards onto the grass grid to set up your defenses, then watch your botanical army tear through the undead. Managing your Sunshine and Charges resources is the key to survival — spend wisely or get overrun.

What sets this game apart is the merging mechanic. Combine two identical plants to create a stronger, evolved version capable of handling tougher zombie types as the waves escalate. Each run forces you to think ahead: which plants to place first, when to merge, and how to stretch limited resources across a growing battlefield. The increasing zombie difficulty keeps every match tense and rewarding when your strategy clicks.

Fans of plant vs zombie games, merge defense games, and free online strategy games will find plenty to enjoy here. Whether you are looking for a casual browser game to fill a few minutes or a deeper tower defense challenge that tests your resource management skills, this game delivers both. It is also a great pick for players who enjoy zombie defense games, card placement strategy games, or free merge games with no download required. Jump in, build your mutant plant army, and see how long you can hold the line.