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The Devourer is the final boss in the game. You will need more than
Overlord 2 cheats to defeat him. There are three sections you must complete before you can finally kill him. In the first section, target a small group of red minions nearby the devourer. Target a second group of red or green minions on the other side of the Devourer. Use your blue minions to clean up the magic slime on the ground to avoid damage to yourself, or to prevent the transformation of other minions and the villagers from turning into mutations that will attack you. Once your minions have done enough damage, the Devourer will move away from this section crashing through a wall. Clear off any remaining blue slime to prevent any mutations from being created.
In the second section, there are some archers to your right and in the far left corner. Direct some Brown minions to eliminate them. Send a group of red minions up to where the archers were. After the Devour taken enough damage, he will move away to another area. Clean up the blue slime that is blocking your path, then follow the Devourer to the next section.
The final section is a bit tougher. Position a group of red minions on the platform directly in front of you. They will cause some damage to the Devourer and other creatures that will appear. The Devourer now has several white pustules that you must target in order to release Solarius. Go down the steps to your left and create a group of green minions (or two if you think you can be fast enough) and guide them to the side(s) of the Devourer where the pustules are located. Direct blue minions to eliminate the blue magic slime as needed. Once you have destroyed all the pustules, the Devourer spits out Solarius. Quickly move the Overlord to where Solaris is and use the Target spell (LT + X) to cause damage. After Solarius has taken a bit of damage, the Devourer will scoop him back up. You may need to repeat the process of destroying the pustules a couple more times. However, the Devourer will throw more and more creatures at you making it more difficult (always have some brown minions at the Overlord's side). Once you have drained enough of Solarius life energy, he will be defeated.
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