Equipment level

Equipment level is an attribute of augmentable items. Once a weapon, shield or piece of leg or torso armour has been augmented it will gain experience and advance levels when it is used in combat. Levelling up an item will give benefits such as allowing the player to put more perks in to the item and reducing the item's degrade change when using charge packs. The maximum level achievable is dependent on research.

An augmented item receives a proportion of of the base combat experience that the player earns when killing a monster. The experience $$x$$ that a monster granting $$y$$ combat experience (excluding Constitution) gives is:
 * $$x =

\begin{cases} \min(0.06y,300) & \text{2-handed weapons} \\ \min(0.04y,200) & \text{1-handed main-hand weapon} \\ \min(0.04y,200) & \text{Body- and leg-slot items} \\ \min(0.02y,150) & \text{Off-hand weapons and shields} \end{cases} $$ Thus, for example, killing one abyssal demon gives:
 * 661 experience to the skill being used
 * 218.1 experience to Constitution
 * 26.4 to any augmented armour and main-hand weapon you are using
 * 13.2 to any augmented off-hand weapon you are using
 * 39.6 to any augmented two-handed weapon you are using

Levelling a piece of equipment from level 1–10 increases the amount of stored Invention experience that is contained within it each time that its level increases. Although items can be levelled up to a maximum of level 20 at 99 Invention, the maximum effects are at level 10 and work as follow: