The Long Hall (10 pages, free/pay what you want at DriveThruRPG) is a fun adventure for OSR RPGs. I used Scoundrel (1 page, from Link-boiZ and ScoundreL, same place) as the RPG. To create my solo engine, I got out my D&D Player’s Handbook 3.0, and changed seven lines. I did have to add some rules to Scoundrel because my PCs had to make a Fort saving throw, and my cleric had to make a Will saving throw. I used six first-level characters : cleric, ranger, fighter, rogue, sorcerer, and paladin. They entered a shrine-mausoleum to explore it. A religious group had invaded it and was trying to convert all of the priests in there. I did not have any major problems until room # 12. My cleric cast his third healing spell and then a diety attempted to convert him to the diety’s religion. Rez did make his saving throw. After they rescued four people, they exited the structure and headed in the direction of town. At dusk they were attacked by three hobbits (yes, I was surprised too). So, they killed a total of 12 enemies that day.

On the next day, the PCs tried to convince three of the rescued priests to join them for the trip back to the temple. The priests did not like the sorcerer, so they said “no” (He has three eyes. He can not help it, he was born that way). On this second day the PCs killed 4 adepts, a giant ant, and then the avatar (boss). This boss fight was a tough one. Both the paladin and fighter went down. Soon, all of the healing spells were used. At this point my six PCs exited the structure. They did not explore every room. They were done for the day and had enough loot from two days of exploring (four scrolls, one magic item which has an expiration date, 698 silver pieces, and 159 gold pieces). Maybe you will find more loot. Give this a try!