This Password Game guide explains how to solve Rule 18.
The Password Game is an online puzzle game that is free to play. Its concept appears simple – formulate a password that satisfies the established criteria dictated by the game’s rules. At first glance, this may sound uncomplicated. But it’s actually far more challenging than you realise. The rules governing your password gradually escalate in complexity as you advance, requiring significant time and effort to solve.
For this reason, the game has proven popular on social media and with speedrunners. While it undoubtedly appeals to puzzle enthusiasts, the experience can be pretty arduous and frustrating.
As you navigate the ever-changing array rules in The Password Game, your password will grow progressively longer and more complicated.
One rule that significantly ramps up the challenge is Rule 18. It reads as follows: “The elements in your password must have atomic numbers that add up to 200.”
![Screenshot of Rule 18 in The Password Game.](https://i0.wp.com/www.downtimebros.com/wp-content/uploads/2023/07/rule-18-password-game.jpg?resize=640%2C187&ssl=1)
Unless you are a chemistry aficionado, you may not know what an atomic number is. An atomic number is “the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.”
Because of the way chemical elements are written in the periodic table, various combinations of letters in your password may be considered an element. Therefore, it can be incredibly challenging to get them to equal 200.
How to solve Rule 18 in The Password Game
This is how to solve Rule 18 in The Password Game:
To solve Rule 18, you must refer to the periodic table which lists chemical elements and their corresponding atomic numbers.
Letters perceived by the game as chemical elements will be highlighted. Use this information to identify the atomic numbers in your password. Use a calculator to add these together. If the atomic numbers in your password equal less than 200, simply add in the letters for a chemical element with an atomic number value that makes up the difference.
If your password equals more than 200, you will need to carefully consider how to reorganise, remove, and/or add chemical elements to the password.
As this will require a specific solution for every player, it is not possible to provide a definitive solution to this problem.
How far have you made it through The Password Game? Let us know in the comment section below and don’t forget to check out our other gaming articles…