In Undead Siege, it's up to you to select the right troops, create powerful formations, and deploy your best strategy to defeat waves of zombies and deadly bosses. A new type of puzzle-adventure bag fight game! Make decisions on the right troops in your backpack for each wave of enemies. Build your ultimate squad by collecting and upgrading unique heroes, and merge soldiers to create stronger, more efficient units. Stay sharp and challenge players from around the world in this thrilling fight for survival. Prepare yourself, Commander! The undead are waiting. Will you be the last one standing?