I would like to introduce you an old school way of playing D&D. System is a modern take on early edition of D&D. It is rules light, so it is simple to run and emphasize is on role play and less about dice and numbers.  Idea is to do dungeon crawl adventure which can expand to multuple sessions or even quests. I would start with a session-0 where I would explain the game a bit more. Introduce ourselves. Have a discussion on our expectations from gaming. And in the end build or introduce characters. What I am hoping my game would provide is: immersion, player choices, risk-reward and funny moments. In vein of old-school games, I am also wanting to reward player creativity on planning, etc. The rules are free (PDF): https://whiteboxgame.blogspot.com/