Easy Gem Farming...
	Various Steam Achievements...

There is an easy way to get all the upgrade gems you need right at the beginning of the game. No need to compete for them with co-op players later on.

Here is what you need to do:

Step One: Start the first mission from the beginning and run to the first chest.
Step Two: This takes about thirty seconds.
Step Three: Open the first chest. If you do not find a gem restart the mission.
Step Four: If you find a gem you will need to go to the next checkpoint to be able to save it. If you quit here it won't be saved the thing that makes this is a good farming spot is that the next check point is close by and there is another chest on the way so you have a chance to get a second gem.
Step Five: A few steps past the second chest is the check point now.
Step Six: Now you can restart the mission and make the run until you get the all the gems you need.
Step Seven: Less than an hour you can have every gem with duplicates.

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
7 league boots	Travel for a little over twentyfour miles.
A secret door to another world?	Open the Hidden Relic Room in Forsaken City.
Back From the Mouth of Hell	Complete the First Round in Horde.
Bully For You!	Defeat The Champion in Hidden Valley.
Capital shot!	Kill 3 enemies with a single shot.
Dangers Untold	Solve the Maze and open the door in Cutthroat Caverns.
Evasive Action	Get to Horde Wave four without taking any damage.
Everybody needs a hobby	Rescue a teammate from a sarcophagus ten times.
Eye say!	Activate the Death Ray in the Great Pyramid level.
For King and Country	Banish Ammit and defeat Seteki without delivering the Coup de Grace.
For Medicinal Purposes	Drink six health potions within a level without dying or restarting.
Get down, Shep!	Defeat the Guardian in The Towering Temple.
Hammer of the Gods	Kill the Hammer Champion in Cursed Village.
Hooked on a Feline	Collect all the Cat Idols.
Hydra's Teeth	Kill hundred skeletons.
I'm stuck with a valuable friend	Collect double the Gold of each of your teammates.
It's not theft if you put it in a museum	Find a Relic.
Master of the Armoury	Unlock all the weapons.
Master of the Mystical	Unlock/Find every kind of Amulet and Gem.
Minted	Collect 10000 Gold from Chests.
Nobody Likes a Show-Off	Chain three Amulet Attacks in a row.
Not Out	Kill 501 Enemies
Now That's Just Not Cricket	Kill a teammate with any kind of trap.
One Simply Doesn't Rush These Things	Annoy the Narrator.
Pay the Piper	Open a Gold Door in Horde.
Purloined Letters	Complete the Main Diary Collection.
Queensberry Rules, ok?	Flatten hundred enemies with a melee attack.
Save Our Souls	Destroy a Soul Cage.
Smile, you Son of a B...	Shoot Seteki from Ammit's Jaws.
Stiff Upper Lip	Kill twenty enemies while on low health.
The Mote out of thine eye	Complete the Beam Puzzle in Tunnels of Wadjet.
The Pharoah's Curse	Die fifty times.
The trick is not minding that it hurts	Spend a total of twenty minute at the low health level.
There's no 'I' in Team...but there is a 'me'	Complete a level with each of the first four Brigade members.
These Are My Fighting Trousers	Melee kill 5 enemies in thirty seconds.
This Is Becoming A Little Awkward	Exit a Sarcophagus five times without restarting.
Tinker, Tailor, Soldier, Savant	Solve every kind of puzzle door across the game.
To preserve the past is to save the future	Complete the Main Relic Collection.
What have you got against pottery?	Destroy hundred pots.
When is a door not a door?	Collect all the Canopic Jars.
Wonderful Things	Open the Sarcophagus Room in Harbin's Dig Site.