Ultima Underworld: The Stygian Abyss

• Although you may be tempted to control the game exclusively with your mouse. I find that using keyboard only controls the game better especially in combat. Use your left hand to control movement around WAXD and attacking using P, ; and /.

• Shift+J is a standing long jump. The manual does mention it, but it's a life-saver and you'll be using it a lot.

• Lockpick skill is useless, any pickable doors can be bashed open.

• Keep a eye out for mantras written on walls and scrolls. They are used at shrines to improve your stats. Each level has at least one shrine.

• You can write notes on your map. Take note of anything and anyone that you come across as you may need to return later.

• For fighter classes, you want to maximize strength at chargen, as there is no in game way of improving it. (Str 25 is enough to wear a set of chainmail and carry a bunch of items)

• I'd recommend using swords as your primary weapon. One of the best swords in the game is required to complete the game.

• Don't hurry down the stairs too quickly. Spend the time exploring levels and improving your abilities.

• On the first level of the abyss go straight ahead and take the first door to the right. Immediately to your right there is a secret door. Behind that is the silver seed. Take it and plant it anywhere there is dirt. Any time you die you will be resurrected at the tree.

• Take note of any visions you receive. Especially ones from crystal balls. You'll know why when it happens.

• There are a couple of fountains on the first two levels that can heal you up. Find them and take note on your map.

• Carry a long pole with you at all times as it can be used to activate switches that are out of your reach. If you have a spare pole, combine it with thread to make a fishing rod.

• Try and find the ring of levitation and the dragon scale boots.

• Late on in the game you will be asked to find a corpse. The corpse in question is tucked away on level 8. It will be the set of bones that don't stack.

• There are a few items you will need that may not seem obvious a first. Such as
  a bowl, a flute, thread, a recipe and its ingredients, incense(you'll need to light up)
  . Anything with a special sounding name(obviously). Also a pickaxe in case you get trapped by a cave-in.

• Endgame spoiler:
  Just run and don't turn back. A path back to Britannia is before you.

• Deco Morono.