Potion Siege

Brew, merge and defend: living potion bottles hold the castle wall against a clockwork army. Summon potions onto the wall, merge two of a kind into a stronger one, and pick a skill card at every upgrade to build your defence. Fire, ice, lightning and more each fight their own way, and every chapter ends with a clockwork boss. Clear the story stages for stars, unlock hard modes, or see how long you last in endless mode.

Stop the clockwork army before it breaks the castle wall; survive every wave to win the stage. Click Summon to brew a potion. Drag a potion onto a matching one to merge them into a stronger one. Click Upgrade, then pick one of three skill cards. When the alchemist is fully charged, click him to cast. Mouse only, no keys needed; on a phone or tablet, tap instead of clicking. On a phone, hold it upright (portrait); turned sideways, the game asks you to turn it back. On a desktop or any wide screen, the battlefield lies on its side and fills the screen (landscape).