You know your audience. To make your escape room pop, you should
create a theme that draws them into the game and fires up their imaginations.
Of course, you don't really need a theme. You could develop a set of sequential puzzles to allow the players to escape.
But what exactly are they escaping from?
Themes provide the excitement of the game. The puzzles provide the meat. Would you really watch a football game with no scoring, points, or winners? Or a golf tournament where no one putted out? Or a golf tournament at all?
By building your escape room around a theme, you engage your players and turbocharge their imaginations. Solving 5 puzzles in 30 minutes sounds kind of fun, as long as the dishes and laundry are already done. But solving 5 puzzles to escape the zombies and save the pizza is soooooo much more satisfying. Especially if it's a supreme pizza with lots of black olives!
Draw up a fun theme for your players. They will get into playing a game much more than just solving puzzles, no matter how clever. And they get to see your devilishly creative mind in action!