Demonic malware (timed debuffs; temporarily disable certain Praetor Suit functions)

Worms (acquired by close proximity to infected machinery/enemies)

- Corrupt robotic assets (UAC robots or supply drones) the Slayer encounters

- Jam automap

- Jam HUD

Viruses (require physical interaction with infected machinery/enemies)

- Disable ammo fabricators

- Disable armor fabricators

- Disable equipment items/tools

- Disable Harmonic Resonators (set heavy metal volume to 0)

- Disable power-ups

Mars (UAC)

Ammo crates (restore all of Slayer's common ammo)

Arena portals

ATLAS shield batteries (powerful explosive/electric)

Breakable walls/doors

Coolant tanks (freeze enemies)

Destructible platforms (usually over lava or nukage)

DynoPhasic Elevators (gravity elevators)

Explosive barrels (presumed to contain Argent)

Exposed wiring (can be shot to produce electric surge)

Flame vents (from broken gas pipes; can be continuous or periodic)

Gressen generators (gravity field generators; enable Earth-like gravity inside Mars Base)

Health Station

Industrial capacitors (electric barrels; do no damage but electrify enemies)

Jump pads (malfunctioning gravity panels)

Lava / molten metal (harms both demons and the Slayer)

Laser gates

Map stations

Nuclear bombshell (tactical nukes, serve as "nuclear" explosive barrels)

Nukage (corrosive/radioactive liquid waste; harmful to demons but harmless to the Slayer)

Nukage barrels

Plasma emitters (emit damaging surge across small area; can be mounted on floor or walls; can be continuous or periodic)

Quick-deploy droid stations

Psionic emitters (can be hijacked via relay terminals; can be used both by Slayer and Rambler Griefers to transmit psionic frequencies to distress opponents)

Reinforced walls (in Lazarus Labs; highly resistant to damage; restrict the Slayer but not phase-shift-capable enemies)

Security turrets (machine guns that deploy from ceiling to prevent unauthorized access)

Teleporters

Test-firing rocket engines (in Spaceport only)

Mars (natural)

Dust storms (reduce visibility; boost electric attacks and raise chance of lightning strikes)

Low gravity outside of Base

Lightning strikes (damage and hitstun)

Sand (shoot to raise obscuring dust plume)

Mars (demonic)

Backdoor (construct in shape of door, injects demonic malware when interacted with)

Blackout Drone (produces cloud of metallic particles that obscures all light/sound in room; doesn't affect Clearsight)

Blood Drone (corrupt supply drone; restores ammo but at cost of HEALTH)

Cloak Drone (conceals single demon in cloaking field)

CRTerror (fills area with rising audiovisual static; explode when destroyed)

Cursed darkness (seen in Lazarus Labs - greatly reduces ambient light)

Cyber Nest (cyborg Gore Nest; injects malware virus when destroyed

Demonic malware

Dust Devils

Evil Eyes (drains life and fills vision with hellish symbols when in their line-of-sight)

Fireblu Torches (blind whenever in own field-of-view)

Gore Nest

Hellgrowth

Portal Drone (follows Slayer and constantly transports demons closer to him)

Suicide Drone (explodes when interacted with)

Trojan Drone (corrupt supply drone; injects demonic malware when interacted with)

Hell (natural)

Blood Storm (highly corrosive metallic rains)

Collapsible stone columns (topple by Rampaging into them)

Crystal obelisks (topple by shooting at base)

Crystal spikes (impale enemies thrown onto them)

Hell (artificial)

Crusher ceilings

Hellstorm Pylon (perimeter cannons defending Hell fortresses)

Hive Nexus (demonic map station)

Sentinel Bonfires (resting place of fallen Sentinel warriors, laid to rest by Slayer; restore Slayer's health)