Dark Messiah: Might and Magic/Walkthrough

Prologue
This is a tutorial chapter, so just follow Phenrig's instructions and you'll be fine. Phenrig will heal you unless you die very abruptly, so it's hard to die. There seems to be no secrets, and you'll lose all your items before Chapter 1.

The Siege
Enjoy the cutscene. When you get up, exit the door and start to your right (away from the gate). Get around the corner to the right and climb up the rope. Now you only have one way to go so run for it. You will reach a ladder, so climb up and see someone get killed by a Ghoul. Jump across for the rope and jump again for safety. If you want to avoid a Ghoul attack, close the gate to your right quickly (by pulling the lever). Now you're safe for a while.

A soldier will come up and tell you to follow him, so get moving. He will lead you to the ballista, so walk over and activate it. Pick up the soldier's Short Sword before you do, though. You need to hit the Undead Cyclops three times to stun it, and the soldiers will finish it off. Great job, start moving downstairs and collecting all the stuff you find (including Daggers and a Bow).

Stonehelm
When you exit the keep, start to your right and follow the streets to reach Menelag's gate in a matter of seconds. Talk to Leanna in front of the gate and follow her inside to conclude the chapter.

If you want to explore the streets, you will find plenty of food and potions along with two secret areas, one holding a Combat Staff.

The Courtyard
Get up and kill the Black Guard coming up the stairs. Loot the guesthouse for some potions and weapons. On exit you will see more Black Guards. Get rid of them in a method of your choosing (you can swing the crane on them, drop barrels on them, kick them into the fire or throw stuff at them if you're having trouble). Move around the house (counter-clockwise) until you find a basement door that's open.

Menelag's Keep
Inside at last. Take the door on your right and get rid of the barrels in a corner for a Ring of the Weaponmaster. A guard or two will attack you when you rummage around, so get rid of them. Continue along the only way you have to find some more guards chatting in a depressed area of a large room. Kill the guards and push a stone for a secret area.

Continue to some stairs leading to a small room with two Black Guards. Kill them and open the door to a larger room with more Black Guards killing staff. Press on to find what seems to be Menelag's throne room. There are lots of enemy soldiers, so help yourself by cutting the huge chandelier loose and lure the enemies on its way. When you're done, loot the room (grab some replacement shields from the wall if you like) and check the small library room at the foot of the stairs for a Wizard Robe. In this room you'll also find a secret area with a Ring of Arcane Brilliance.