Good road trip games are simple to explain, easy to pause, and safe for the driver to ignore. Let passengers run the game and keep the driver focused on the road.
Try an alphabet hunt using signs, a twenty-question guessing game, a shared music quiz, or a story in which each passenger adds one sentence. Younger travelers may enjoy spotting colors or vehicle types, while adults can build themed playlists or trivia rounds.
Rotate games before anyone gets tired of them. Agree that anyone can sit out, keep volume comfortable, and save games that require screens or writing for passengers only.