Item (Risk of Rain)

Passive Items
The majority of the items in this game are equipped passively and are always active. They can be stacked and do not appear to have a stacking limit, however some seem to have reduced effects when stacked; further testing is required to determine how much each item is affected. Do note, however, that unless otherwise stated, collecting multiples of the same item with an effect that has a chance of activating will not increase the chances of the effect being triggered (look at Ifrit's Horn in the tables below for an example).

There are three main categories that these items fall into: Offensive, Defensive and Other.

Offensive
These are the items that ultimately increase your damage output in some way. They do this by adding Crowd Control effects (like stuns and slows) or bonus damage to the player's character or their attacks.

Defensive
These are the items that increase the player's survivability. They do this by either increasing the player's health and armor stats or by increasing their health regeneration in some way. Do keep in mind that items that increase health will only do so up to a value of 9999.

Other
These are the items that don't directly affect the player's stats and/or attacks; nevertheless, they're still highly beneficial to the player in some way.

Use Items
Use items are different in their workings - unlike passive items, the player can only have one type of use item at a time and can not stack it repeatedly; however, should they find another Use Item during gameplay, they can choose to swap between the two. This opens up a multitude of strategies, both for specific classes and for players themselves. Also, Use Items will disappear after a certain amount of time if they are left.

Do note that if the player's Usable Item is on cooldown when they switch, the new Usable Item will still have to wait for the old one's cooldown to end before it is able to be used.

Special Items
These items are not present in the Item Log - they are unique to a single location in the game.

Artifacts
Artifacts are really just ways to alter how the game is played, and once collected, add additional game options at the character select screen. Some, like Command, are just better for the player. Others, like Distortion, make the game significantly harder. Others are mixed, such as Spirit, offering benefits to the player and enemies alike.

These can be collected in multiplayer, and as long as one person playing has collected the artifact the option can be enabled (although collections must be done independently for all players to use the artifact in single player); i.e. its not limited to the host. Artifacts can be collected on any difficulty and it is not required to beat Providence. Picking it up and dying is sufficient.