Full list of all 40 LARA CROFT AND THE TEMPLE OF OSIRIS achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
In a 4-player local or online multiplayer game, be the only player to not die in a tomb
Have the most deaths in a tomb in a local or online multiplayer game
Revive another player in a local or online multiplayer game
Finish a tomb in a 4-player local multiplayer game
Bomb a player in a Magic Shield in a local or online multiplayer game
Complete all Tomb of the Lamplighter challenges
Complete all challenges
Complete all Tomb of the Ferryman challenges
Complete all Pyramid of Osiris challenges
Complete all Set challenges
Complete all Sobek challenges
Complete all Khepri challenges
Complete all Tomb of the Silversmith challenges
Collect enough canopic jars to unlock an onyx weapon
Complete all Tomb of the Timekeeper challenges
Complete all Tomb of the Architect challenges
Get the most kills in a tomb in a local or online multiplayer game
Get the most gems in a tomb in a local or online multiplayer game
Finish any tomb in online multiplayer
Complete all Tomb of the Torturer challenges
Complete any gold score challenge
Defeat Set
Complete the Tomb of the Architect
Defeat the Pharaoh
Complete the Tomb of the Torturer
Complete all Challenge Tombs
Defeat Sobek
Defeat the Oracle of Osiris
Complete the Tomb of the Lamplighter
Complete the Tomb of the Ferryman
Complete any level time challenge
Defeat Khepri
Complete the Tomb of the Silversmith
Complete a Challenge Tomb
Wear two rings and an amulet
Complete the Tomb of the Timekeeper
Unlock a treasure chest
Complete any red skull challenge
Escape the Pyramid of Osiris
Find your first weapon