The Compendium is an item that players always have equipped, you cannot unequip, and you get by default. It will give a boost in stats depending on the number of monsters killed.

• There will be 3 tiers of kills for each monster in the game, a low, middle, and high number of kills.
• Reaching a tier will give a number of points towards the player's total Compendium score.
• The higher the score, the more stats the Compendium gives. The score boost is a flat number of stats.
• There will be bonuses for having certain combinations of monsters at certain kill tiers.
• Bonuses stack upon each other, and you can see your Total Boosts on the left hand side.

For example, a “Wasteland Destroyer” combination could mean kills on Rats, Skrivets, Razen Drakes, and Karth Drakes.

• Combination bonuses are above and beyond your normal Compendium boost in stats, and act similarly to Energizements.

For example, “Wasteland Destroyer” could give +2/5/10% Pierce for T1/2/3 in kills.

• Combination bonuses are permanent and stackable.

To obtain each rank, the number of kills below must be met for each and they are a running total.

This means to get from Rank 2 from Rank 1, you would need another 400,000 kills, and not another 500,000 kills.

Rank 1 = 100,000 Kills

Rank 2 = 500,000 Kills

Rank 3 = 1,000,000 Kills

The list of rewards for each rank is below: