Maybe you want to show a friend the fun of classic D&D, but you can't pull a group together on short notice. Maybe you have nights where only one friend can make it, and you're tired of breaking out the card games. Maybe you just want to run a side game for somebody, but don't feel like weighing them down with an entourage of henchmen just so they can survive their first combat. What do you need? You need Solo Heroes, a free Labyrinth Lord-compatible supplement for lone adventuring.
While written for the Red Tide Campaign Setting and Sandbox Toolkit, this supplement is compatible with a wide range of old-school games. Within, you'll find a simple set of rules for running classic adventures with just a single PC. There's no need to alter character sheets or rework modules to make them survivable for whatever class your player has chosen- Solo Heroes gives you a handful of simple rules for turning such solitary exploration from a death wish in the making to a daring tale of risk and potential glory.
In addition to these rules, the mini-adventure of The Yellow Toad God's Well is provided to give you a little something instant to run for your player's new hero. And if it turns out you've got a full group for that night's session? Just drop the optional rules and run it by the book. Solo Heroes lets you play the game without painful paperwork and adventure redesign, whether for one player or half a dozen.