A few days ago I soloed my way through Winner Winner Chicken Dinner. It is a fun OSR adventure that is in Dan Dies in the End no.1 (36 pages, free/pay what you want at DriveThruRPG). The RPG system that I used was Wretched Bastards Quickstart. I used the FlexTale Solo Adventuring Toolkit (same place) as the solo engine and to make the adventure longer. I created six characters including one cleric. You will need a cleric. This gets bloody.

The quest is to get a golden egg. It is huge, not made of gold, and it is needed for a recipe. My PCs explored the 14 rooms of the lair. They found 18 silver/gold coins and a wide variety of loot including 5 talking carrots, 12 burritos wrapped in aluminum foil, two Wheeling metal trash cans, and a golden spatula ( a magical weapon). The PCs did make a lot of noise with those trash cans. It did trigger a combat encounter. They killed a total of 8 monsters. Five of the PCs did have a problem with the other PC Marl. He is a rogue and does not follow instructions. When they all got back to the inn on the second day, they did take a bath and rest. Marl met a woman and went on a date. He was able to check out her place. He had a great date. The next evening at 11:45, he broke into her place and stole her valuables. He was not seen or caught. What a guy. You do not want these PCs to be your friends. They are not nice. Give this a try!