Tower Siege

Assemble a tower from the blocks dealt to you, then defend it. Between waves, you draw a hand of four pieces — walls, archers, cannons, mortars, tesla coils — with a short window to place them. Then the horde advances: goblins, boar-beasts, burning hounds, bone knights, and siege engines whose range exceeds all your defenses. Any block that loses support collapses, and the tumbling debris crushes whatever lies below. Spend wood, stone, and gold, unlock the tech tree, and see how far you can push.