Examine everything. Every cyan object should be examined. In fact, you will find most objects can be examined even if it's not cyan.
Also, pick everything up that you can.

Feel around, you will find a way to get light.

This is a common escape room trope; you need to trigger the door to open.

The mirror won't work if it's dirty.

You can't get the right angle with the mirror if you're the one holding it.

The mirror needs to be aimed at something specific.

You need to find the mirror, clean it, put it in the statue, and point it at the Eye (not the door!).

Relax for a bit, take a seat, maybe look around.

The mural hidden over the throne will guide you.

The wheel turns like a combination lock.

The figures on the mural all face alternating directions.

Turn the wheel in the direction each figure is facing until you arrive at that figure. If you pass the figure or go the wrong way, the wheel resets.

Starting from any position, turn the wheel left to the first figure (the woman), then turn it right to the second (the man with the headdress), then left to the green-faced figure, then right to the jackal-headed figure, then left to the man with the blue crown.

It only flows when there's something in the right place to trigger it.

You need to find something almost as heavy as you to take your place.

Look around a bit, you may have missed something you'll need to put in their places.

If you examine the pillars, you'll get some items that need to be put in their proper place. If you've done that, you should've gotten the pitcher.

The figurines represent servants and soldiers who serve the Pharaoh in the Afterlife. Near the throne are places that would be appropriate for them.

One of the displays is a battle scene, the other is a farm scene. Who would best serve where?

The hieroglyphics on the altar match the ones on the dial, but you have to do something to reveal which ones are relevant.

Once you have filled the basin with water, look at the hieroglyphics on the altar.

Look at the indicated glyphs, tally them up.

Get the water, fill the basin, and examine the hieroglyphics on the altar. Count the number of each glyph in the “pyramid”. Each dial is set to the glyph that matches its count.

You need to find the gems first.

There are two pieces of information you need order the gems properly - both can be found on the walls of the altar room.

The wall murals display scenes throughout the Pharaoh's history.

You need to put the scenes in chronological order to get the order for the gems.

The scenes show 1) the coronation of the Pharaoh (making him Pharaoh), 2) as Pharaoh, being surrounded in battle, 3) being mummified to prepare him for the Afterlife, and 4) entering the Afterlife.

Take all the gems back and then put them into the sarcophagus in the order indicated by the scenes on the wall: 1) PUT EMERALD HEAD 2) PUT SAPPHIRE RIGHT, 3) PUT RUBY CHEST, 4) PUT TOPAZ LEFT.

Now you have to find the hidden puzzle. You do not need to restart.

Don't be too hasty to go outside.

On the way out, look around - you should find a hidden camera and journal.

What do you normally do with a camera? Use the journal to guide you.

The diagram shows several hieroglyphics - you should have seen these around the tomb.

One for every glyph on the diagram.

9.

You only have yourself to blame, you're the one that hid them!

You have to remove/reset them to remove obstructions to get a clear shot of them.

Remove the coffer from the throne to get a clear shot at the throne and the fountain. Remove the mirror from the statue to get the door to slide shut, revealing the Eye.

Ankh: Fountain (without the coffer); Braid: Statue; Circle with dot: Basin; Crook: Throne (without the coffer); Cup/Bowl: Altar; Eye of Ra: Antechamber door (when shut); Half-circle: Sarcophagus; Knives: Urn; Waves: Pillar.

You need to find out where they are from. They are all from a certain region.

You can use image search, but also each image shows the URL of the site they came from.

These are all tombs in Egypt.

The journal told you they are a “map to guide you along the paths of the Pharaohs of old.”

They are all tomb locations in the Valley of the Kings in Egypt.

The names of the tombs are not important. You are not translating the tomb numbers to letters.

Have you found a representation of how they are located in the real world?

Take the six lines of icons on the diagram and find some connections.

Find on a map of the Valley of the Kings the locations pictured, trace a path between them in the sequences shown in the diagram. Each will give you a letter. Make sure your map's North is generally North (though tilted to the NW is slightly better).

Read down the left page, then down the right. The first letter is a D...