The Citadel

The Citadel is a puzzle game where, on each level, the player has to get the protagonist to the exit. The way to the exit is usually blocked with various obstacles: rocks, boxes, pits.

Rocks can be pushed around, but only one at a time, and they cannot be pulled. Boxes are similar to rocks, but a row of them can be pushed around as one. Pits need to be filled with a rock or a box, depending on their shape. Teleporters transport the hero to another teleporter. Bombs can be pushed around, and explode when a trigger is pushed, destroying everything (and detonating other bombs) near them.

Every level has a time limit. Passwords can be used to skip to later levels.