Loukas Koutsikos et al.
knowledge by experimenting in the surrounding world, exporting rules and conclusions as the results
of this experience (Komis, 2004).
Figure 3: An overview of the game world
The world represents a forest lying on two different terrains. On the first, no environmental disaster
has occurred, contrary to the second one which is highly polluted. The two grounds are separated by
a river with contaminated water.
The characters (both Active and Non Active) introduced in the game are noted in the following figure.
Table 1: The characters that appear in “Kodus Invasion”
Active Characters (A.C.) Non-Active Characters (N.A.C.)
The cyclist (the only character controlled by the
player)
The Red Kodus (1st terrain)
The weather balloon (1st terrain)
The Stick-Guard (2nd terrain)
The Black Kodus (2nd terrain)
The boat (in the river)
The Factory (2nd terrain) The Big Kodu (2nd terrain, in front of the Factory)
When the game starts, a message appears from the weather balloon informing the player that the
Red Kodus have set the trees on fire, encouraging him to stop the disaster. This mission aims to
introduce the player to the game world as well as to offer the needed time to get familiar with the
handling of the hero (game play). On the successful completion of the first mission, the weather
balloon informs the player that the forest is still at risk, urging him to continue.
At the same time, the ship situated in the river activates the message "Reforestation now", introducing
the player to the second mission of the game.
In this mission, the player is encouraged to discover how to reforest the land and then to achieve it by
bumping on the trees. The mission requires the activation of the player who has to move appropriately