| Accordion | Can be recycled into crafting materials. | Recyclable |
| Adrenaline Shot | A serum that fully restores stamina and temporarily increases stamina regeneration | Quick Use |
| Advanced ARC Powercell | Very valuable resource that drops from certain ARC enemies | Misc |
| Advanced Electrical Components | Used to craft utility items and shield mods. Can be recycled into crafting materials. Used to craft: Raider Hatch Key, Photoelectric Cloak | Refined Material |
| Advanced Electrical Components Blueprint | Lets you craft an Advanced Electrical Component | Blueprint |
| Advanced Mechanical Components | Mostly used to craft advanced weapons. Can be recycled into crafting materials. | Advanced Material |
| Advanced Mechanical Components Blueprint | Lets you craft an Advanced Mechanical Components | Blueprint |
| Agave | A piece of an agave leaf. Can be used to regain a small amount of health. | Nature |
| Agave Juice | A concoction that temporarily increases stamina regeneration, at a small initial cost to health. | Consumable |
| Air Freshener | May be worth a few coins. | Trinket |
| Alarm Clock | Can be recycled into crafting materials. | Recyclable |
| Angled Grip I | Slightly reduces horizontal recoil. | Modification |
| Angled Grip II | Moderately reduces horizontal recoil. | Modification |
| Angled Grip II Blueprint | Lets you craft an Angled Grip II | Blueprint |
| Angled Grip III | Significantly reduces horizontal recoil. | Modification |
| Angled Grip III Blueprint | Lets you craft an Angled Grip III | Blueprint |
| Antiseptic | Used to craft medical supplies. Can be recycled into chemicals. | Refined Material |
| Anvil Blueprint | Lets you craft an Anvil | Blueprint |
| Anvil I | Single-action hand cannon with high damage output and headshot damage, but slow handling. | Weapon |
| Anvil II | Single-action hand cannon with high damage output and headshot damage, but slow handling. | Weapon |
| Anvil III | Single-action hand cannon with high damage output and headshot damage, but slow handling. | Weapon |
| Anvil IV | Single-action hand cannon with high damage output and headshot damage, but slow handling. | Weapon |
| Anvil Splitter | Tech mod for the Anvil that replaces its bullets with ones that split into 4 weaker projectiles. | Modification |
| Anvil Splitter Blueprint | Lets you craft an Anvil Splitter | Blueprint |
| Apricot | A sun ripe apricot. Can be consumed for a small amount of stamina. | Nature |
| ARC Alloy | Obtained from ARC enemies or activities, or by recycling certain ARC parts. Used to craft components. | Topside Material |
| ARC Circuitry | Obtained from ARC enemies or activities. Used to craft components. Can be recycled into ARC Alloy. | Topside Material |
| ARC Circuitry Blueprint | Lets you craft an ARC Circuitry | Blueprint |
| ARC Coolant | Obtained from ARC enemies or activities. Can be recycled into chemicals | Recyclable |
| ARC Flex Rubber | Obtained from ARC enemies or activities. Can be recycled into rubber. | Recyclable |
| ARC Motion Core | Obtained from ARC enemies or activities. Used to craft components. Can be recycled into ARC Alloy. | Topside Material |
| ARC Performance Steel | Obtained from ARC enemies or activities. Can be recycled into scrap metal. | Recyclable |
| ARC Powercell | Valuable resource that drops from all ARC enemies. Used to craft: Shield Recharger | Topside Material |
| ARC Synthetic Resin | Obtained from ARC enemies or activities. Can be recycled into plastic. | Recyclable |
| ARC Thermo Lining | Obtained from ARC enemies and activities. Can be recycled into fabric. | Recyclable |
| Arpeggio I | Has decent damage output and accuracy. | Weapon |
| Arpeggio II | A 3-round burst assault rifle with decent damage output and accuracy. | Weapon |
| Arpeggio III | A 3-round burst assault rifle with decent damage output and accuracy. | Weapon |
| Arpeggio IV | A 3-round burst assault rifle with decent damage output and accuracy. | Weapon |
| Assorted Seeds | A handful of seeds. Celeste might be looking for these. | Nature |
