Three limbs ripped off, infected with a deadly parasite, you must save your research. Drag yourself through the corridors of a secret research lab on a remote asteroid, fight off horribly mutated monsters, inject countless syringes of vaccines, and survive at all costs.
The game's most distinctive and praised feature is its innovative control scheme, which requires players to perform every action - moving, shooting, reloading, and interacting - solely through mouse inputs. This design choice compels players to mimic the player character's one-armed predicament, creating a uniquely challenging experience. Simple tasks like reloading a revolver or avoiding enemies demand careful mouse movements and precise timing, as players must manually eject spent cartridges and load new ones while also managing the limited visibility and mobility. Mastering these "QWOP-like" controls is essential to success, forcing players to develop a high level of dexterity and reaction speed to survive the tense encounters.
In addition to the demanding controls, the gameplay revolves around carefully managing scarce resources, such as ammunition and health-restoring vaccines. Players must ration their limited shots, reload efficiently, and time their healing to withstand the onslaught of mutated enemies. This resource management element adds a layer of strategy, as players must balance their immediate needs with preparing for future threats. Misjudging ammunition counts or failing to secure a vital vaccine can prove disastrous, heightening the tension and stakes of every encounter.
The manual reloading and firing mechanics extend to the game's varied arsenal, which includes a revolver, shotgun, flare gun, and crossbow. Each weapon requires players to individually manipulate its ammunition, forcing them to carefully consider when and how to expend their limited shots. This novel level of interaction with the firearms creates emergent gameplay moments, such as frantically reloading while backpedaling from an approaching enemy or lining up a precision shot with the flare gun to create a temporary distraction.
The combination of one-handed controls, resource management, and unique weapon mechanics results in numerous high-tension, player-driven scenarios. Players may find themselves in nail-biting situations, such as frantically reloading their weapon while backpedaling away from an approaching enemy or carefully lining up a shot with the flare gun to create a temporary distraction. These types of emergent moments, where players must quickly assess their options and execute a plan with limited resources, are frequently cited as the highlights of the experience.