Baldur's Gate II: Shadows of Amn

Baldur's Gate II: Shadows of Amn is the second computer role-playing game in the Baldur's Gate series, which takes place just a few months after the events of Baldur's Gate. It is based on the outdated Advanced Dungeons and Dragons 2nd Edition system.

Plot
You have left Baldur's Gate with Imoen, Khalid, Jaheira, Minsc & Dynaheir after rumours surrounding your heritage started spreading around the city that could have caused trouble for you and your friends.

During your travels, you are set upon by a group of men who overpower the party. You wake up in a dungeon where a mysterious mage is magically experimenting on you. Luckily, he has to leave for a while which provides Imoen, who managed to escape using her skills as both a mage and a thief, to set you free.

Khalid was killed when you were ambushed and Dynaheir was tortured until death by the wizard, who you discover is called Irenicus. You escape the dungeon amidst the sounds of battle. An explosion destroys the passage behind you and you see Irenicus battling some men. A group of Cowled Wizards teleport in and arrest both Irenicus and Imoen for using magic without a licence. You discover that you are in Athkatla in Amn and you set off to rescue Imoen and find out what Irenicus was trying to do to you.

You are approached by two groups who offer you passage to Imoen for a hefty price and services rendered. You have to choose to ally yourself with the infamous Shadow Thieves guild or with the vampire Bodhi and her guild. The two groups are vying for power and your influence will tip the balance in the favour of your choice. After completing your tasks, you are taken to Brynnlaw, one of the smaller Nelanther Isles, where there is an asylum operated by these Cowled Wizards called Spellhold. Unknown to you, Irenicus has taken over. He captures you again and steals your Bhaalspawn essence then throws you into another dungeon beneath Spellhold. You discover that Imoen is your half-sister and also a Bhaalspawn. Irenicus has also stolen Imoen's powers and infused them into Bodhi, who turns out to be Irenicus' own sister.

Bodhi hunts you in this dungeon until you prove to her that your essence has not completely left you by turning into an avatar of Bhaal himself! You escape the asylum and have to follow Irenicus and Bodhi into the Underdark. You aid a Svirfnebli town and are shown to the silver dragon Adalon who sends you into the drow city of Ust Natha to retrieve her stolen eggs which are to be used to summon a great Tanar'ri. You do so and escape the Underdark, finding yourself in an elven war camp. After persuading them to let you go they ask you to steal an item called The Lanthorn, which was stolen by Bodhi. Gathering allies for an assault (including the Companions of the Hall) you attack and take back The Lanthorn, killing Bodhi and getting Imoen's divine essence back. Using The Lanthorn, you gain entrance to the elven city of Suldanessalar which is under siege from an army of drow, rakshasa and golems, led by Irenicus. He was drained of his elven heritage as punishment for his crimes long ago and seeks to get it back by force. You kill him but are taken into the afterlife with him due to the fact that he has your spirit. You face him again and this time defeat him properly, gaining your essence back. Finally, you can rest for a while but the adventure isn't over yet.