I only played the vanilla-version, because a modded bg 1 seems better to me then the Enhanced Edition, so all my answers applay to BG 1 vanilla (I hope, some mods are huge changes for the gameplay).
1. For some quests/side-quests you need gems or jewelry, but I can think of only one minor side-quest where the appropriate item isn't available in the quest and you have to use one from a random drop.
2. There are certain timed spawn-points for new mobs and random attacks while traveling on the worldmap.
3. see point 1.
4. no time limit.
5. It's not neccessary, but the prices for good equiqment are very high... as long as you haven't installed difficulty raising mods like "Swordcoast Stratagems" you can savely ignore the junk.
6. The maps are rather empty, but there is some handplaced loot to find, that you might want to have.
7. Weapons break - if they are made of iron, IIRC when you roll a 20 at your attack; Staffs, Clubs and bows don't break, and magical weapons don't break either.
8. I can't remember; i.e. some ghosts might be only available at night.
9. The Spells get replenished when you rest - you have to memorize divine and arcane spells.
10. There are a few books to find, that can permanently raise a stat. Also there a magical Items that can increase the stats and the memorized spells.
11. can't remember about wildmages; they weren't around in BG 1 and in BG 2 they where to unreliable for me.
12. Fatigue occurs when you don't rest. A low constitution score and high encumbrance accelerates this IIRC.
13. Magical Tomes can increase your Stats - I remember one Tome for each Stat, except for wisdom, for wich there are 3. It's better ro roll insanely high stats before starting the game (or use an editor if you started already)
14. Yes, thats low level A&D - in the P&P-rule-set you loose on Constituion-Point if you are raised from the dead, check out if that is implemented - if it is, better reload when someone dies. Keep your mages out of sight from the enemy until they start slinging fireballs (well, or magic missles or sleep spells)
15. I used doubleclick on the stack, there were other options.
1. For some quests/side-quests you need gems or jewelry, but I can think of only one minor side-quest where the appropriate item isn't available in the quest and you have to use one from a random drop.
2. There are certain timed spawn-points for new mobs and random attacks while traveling on the worldmap.
3. see point 1.
It's an Angel-Skin Ring
4. no time limit.
5. It's not neccessary, but the prices for good equiqment are very high... as long as you haven't installed difficulty raising mods like "Swordcoast Stratagems" you can savely ignore the junk.
6. The maps are rather empty, but there is some handplaced loot to find, that you might want to have.
7. Weapons break - if they are made of iron, IIRC when you roll a 20 at your attack; Staffs, Clubs and bows don't break, and magical weapons don't break either.
8. I can't remember; i.e. some ghosts might be only available at night.
9. The Spells get replenished when you rest - you have to memorize divine and arcane spells.
10. There are a few books to find, that can permanently raise a stat. Also there a magical Items that can increase the stats and the memorized spells.
11. can't remember about wildmages; they weren't around in BG 1 and in BG 2 they where to unreliable for me.
12. Fatigue occurs when you don't rest. A low constitution score and high encumbrance accelerates this IIRC.
13. Magical Tomes can increase your Stats - I remember one Tome for each Stat, except for wisdom, for wich there are 3. It's better ro roll insanely high stats before starting the game (or use an editor if you started already)
14. Yes, thats low level A&D - in the P&P-rule-set you loose on Constituion-Point if you are raised from the dead, check out if that is implemented - if it is, better reload when someone dies. Keep your mages out of sight from the enemy until they start slinging fireballs (well, or magic missles or sleep spells)
15. I used doubleclick on the stack, there were other options.