Stackade

Stackade is a tower defense game where you build your defenses from falling blocks. Pieces appear in a column beside the board, and you drag them into place around your HQ. Some carry towers, including rifles, miniguns and flamethrowers; plain blocks stop enemies from walking through them. Towers provide firepower while the blocks shape the route enemies take, giving you a chance to make them cross a longer stretch of ground under fire.

Shape the enemy route

Enemies approach in different ways, so a layout that works against one kind may fail against another. Some walk around walls by seeking the shortest route, while others ignore walls. Some head straight for your HQ; others stop at a distance to attack your towers, explode against your blocks or simply disrupt the board rather than fight.

Modes

Campaign consists of four short levels that introduce how the game works. Infinity continues until your HQ is destroyed. In Infinity, a new enemy type appears every three levels, followed by its boss two levels later.

Spend and upgrade

You earn money after each level and spend it in the shop on towers, buff cards, grid upgrades and new shapes. Money is limited, so you have to choose what to buy. Buying a tower also makes it appear more often among your pieces, shaping your board over the course of a run. The Workshop upgrades towers you already own, and the Shape Forge lets you draw your own pieces.

Available tools

The game includes 15 towers and a rewind feature for correcting bad drops.