Lara Croft and the Temple of Osiris/Walkthrough/Chapter 1

The Pyramid of Osiris
This is the first chapter of the game, where you will start learning all gameplay essentials. Once you are revealed the background of your story, you will start your adventure. Start moving Lara around to get to know about her actions, movements and others, and once you feel confident by only moving around and not prompting any special interactions, go ahead and start playing more ambitiously.

To do so, first cross the bridge and turn on both brasiers by lighting up your own hand torch. Once you do so, a new bridge formed by two pillars will raise. Go up these pillars and you will see a tip message telling you about using your gun to burst jars to get all treasures hidden in the map. Now that you know about that, go down the pillars again and start looking for various jars. Break them with your guns and recover the diamonds from within.

Secret: At the end of the zone on the right side of the area where the pillars stand, there is a small hidden area if you jump down to the botton right corner of your screen (you will see some shiny spots to guide your jump).

Once you've finished smashing the vases, use the Staff of Osiris to destroy Set's Mark and to remove the forcefield blocking the passage to continue.