Baldur's Gate

"At the core of Baldur's Gate is a highly complex plot (you'll also embark on dozens of minor side quests that you can perform for fun and experience). Your starting character is essentially the protagonist of this larger story. Accordingly, the game automatically ends if your character is killed--although your companions can be killed in battle and resurrected at any local temple. I don't want to ruin the plot by revealing any of the details, but it involves intrigue, conspiracy, murder, and the darkest magic. Would you expect anything less from AD&D?"

"Combat in Baldur's Gate is different from its predecessors, as it is in real-time. The combat method is based on AD&D rules adjusted to real-time, so instead of a 60 second initiative period, each character is given 6 seconds. The speed with which a character attacks is a number between 1/10 and 10/10ths time per round and the initiative is decided by a combination of rolled factors: ability, situation, and chance. Whether a character has a successful attack still depends on their THAC0 (To Hit Armour Class 0) and their attack roll. Critical hits and misses are decided by the attack roll, 20 or 1, respectively. Strength, dexterity, modifiers and weapons all affect attacks. Casting is treated in a similar way, although spells must be previously memorized (rather than being based on the mana of the caster) and can be disrupted in combat if the caster is hit."