In _Wicked_ , a big evil has come to the world and the player has to drive it
back. To do so, the twelve astrological signs (with three levels each) have to
be purged. The basic idea is that portals spit out spores which can be either
good or evil. The goal is to produce enough good spores to overrun and destroy
all evil portals before the screen is filled with bad spores.

The player has to manage the time resources because everything has to be done
manually: shooting at the evil spore growth to drive it back and picking up
good spores to create good spore portals at strategically useful positions.
Additional gameplay elements are Guardians which fly around the screen and are
unhealthy when touched, a night-time-rhythm which influence the spore growth
and tarot cards which get revealed in regular intervals. These have either
good or bad influences for the one who picks it up. There are three options to
set the gameplay: action-oriented, strategy-oriented or mixed.