Locum Tenens game cover

Locum Tenens CD Key

A retro-inspired sci-fi shooter where you battle a mysterious alien threat aboard the drifting spaceship Saratorum. Manage limited inventory, use a variety of weapons, tackle levels requiring different tactics, and face bosses with unique weaknesses. Features story cutscenes and a modern PC port of the 2025 PSP original.
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Current Lowest Price

2.99$
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Release Date

18 Dec, 2025

Publisher/Developer

Deriv'era

Reviews

Steam: 100.00% positive (8/8)
Metacritic: -

Locum Tenens Steam Price History Chart

Current Steam price: 2.99$
Lowest Steam price ever: 1.49$ — 2026-10-08
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Locum Tenens description

Locum Tenens is a retro-inspired sci‑fi shooter set aboard the drifting research ship Saratorum, stranded near the planet Nadalon. An alien craft manifests without warning, and every attempt to communicate ends in silence. As time drags on, something begins to spread through the corridors—crew members start behaving strangely, paranoia rises, and the situation spirals beyond control. By the time you decide to act, the ship is already slipping into catastrophe.

You are the last line of resistance, fighting through sealed compartments and hostile encounters with one goal: survive long enough to warn your Homeworld about the threat that has reached Saratorum.

Inspired by classics like Zero Tolerance, Locum Tenens delivers tight, old-school action with modernized controls and a full PC release. Combat is built around smart preparation and adapting to the environment. You’ll manage your loadout with 5 inventory slots, forcing meaningful choices about what to carry and when to swap gear. A wide variety of weapons lets you tailor your approach—whether you need rapid firepower, precision, or specialized tools for tougher situations.

Each level is designed to push different playstyles. Some areas reward speed and aggression, while others demand careful movement, resource management, and the right equipment to get through safely. Threats aren’t one-note: enemies and bosses feature distinct weaknesses and tactics, encouraging you to learn patterns, adjust your arsenal, and choose the correct strategy instead of relying on a single weapon for everything.

Story-driven cutscenes connect the action between missions, revealing more about the alien presence and the fate of the crew as you advance deeper into the ship.

Originally created for PSP in 2025, Locum Tenens arrives as a complete PC port built for modern systems—bringing a focused, atmospheric shooter experience where every corridor could be your last, and every shot counts.