Running a campaign in the Kingdoms of Kalamar setting. Using the pantheon from the BotR with lots of influences from Harn. Switched it over to GURPS 4e, however.
Two selections: "Forgotten Realms" and "old TSR setting", but only one campaign: a massive Forgotten Realms / Kara-Tur (+Rokugan) / Planescape / Al-Qadim / Spelljammer multiverse campaign.