Players can, and probably will, build their own heists for others to attempt. The level editor looks like a friendly version of proper developer tools, letting you build and bend walls, set puzzles, and even create interactive elements with NPCs. The game comes with over 8,500 assets, which is almost certainly enough for you to trap visitors in a decent facsimile of your childhood home. You get to vote on how much fun the misson was, so the good ones should be pretty obvious.