Sword for Hire (1979)

From the back: "In SWORD FOR HIRE you become a mercenary, exploring the dark recesses of a wizard's tower. Fabulous treasures, diabolical monsters, pitfalls at every corner and danger at every turning - will you be able to survive, complete your assignment and earn the title of "Hired Sword"?" You bring your own Tunnels & Trolls character into the wizard's tower and then proceed in classic "Choose your own adventure" fashion, turning to a particular page and paragraph based on the choices you have made or the results of your saving rolls and combat dice.