Wall or rock outcropping you can't get through? Try a Shatter or Move Mountains spell.
Early on, wandering encounters are your best source of cash.
Two of the most powerful (and interesting) spells are Simulacrum and Capture Soul. Be sure to take a look...
Casting Antimagic cloud on an area with magic fields dispels the fields.
You can only cast mage spells of a level as high as your Mage Spells skill (same for priest spells). Being dumbfounded keeps you from casting spells - the more dumbfounded you are, the less spells you can cast.
Once quickfire is loose in the dungeon, running is your only real option. When a dungeon is overcome with quickfire, leave and return later. The flames will have died down.
It is possible to store excess items. There are places to do so in Olgai, Silvar and the Castle. Where? Good question...
Always keep a back-up save slot or two. You never know when you're going to get trapped somewhere, or forget your major artifact in a town somewhere.
When a PC in combat moves into another, they switch places (as long as both characters have action points left).
Save wands with one charge left, and use recharge spells to give yourself an extra kill spell (or whatever) for your next dungeon.
If a fear spell doesn't work, the next one is much more likely to work. Similarly, 2 poison spells do more than twice the damage of one poison spell.
You don't have to look at a wall to see a secret door. Just walk into it. This goes for secret passages in cave walls as well.
Try blessing a character 3 times, and see how he/she does in combat.
At low levels, magic is much more powerful than hand-to-hand fighting. Try to get a mage with third level in Priest Spells and Mage Spells as soon as possible.
A character can equip two one-handed weapons. However, it causes a large penalty to hit. Save this trick for higher levels, or someone with the Ambidextrous advantage.
Try using weapon poison on arrows. It's an excellent way to kill those pesky enemy mages.
Wearing stuff with total encumberance more than 1 prevents casting mage spells. However, high defense skill will occasionally let you get away with casting a mage spell anyway. If you fail, though, you lose your turn.
When casting Ritual of Sanctification, cast it directly on the affected space. If a special tells you an altar is evil, cast the spell directly on the altar.
Hitting capital 'M' or 'P' has you cast the same mage/priest spell you cast last time.
You can select spaces using the keypad. Hitting 'l' and, say, '4' on the keypad has you look at the next space to the west.
Buy each character a level or two of strength as soon as possible. When strength is below 4, there is a penalty on the health you gain at each level.
Can't find gold? There's plenty in the wandering encounters around where you start. Get a mage who can cast fireball and you can fight the combats very quickly.
Hitting '0' on the keyboard or '=' on the keypad brings up the party roster.
During combat, hitting 'z' or '0' on the keypad brings up the status screen of the active character. Hitting it again brings up that character's inventory.
