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Source: Steam · updated July 6, 2026
Boundary is a zero-gravity tactical multiplayer shooter developed by Surgical Scalpels Studio and published by Skystone Games. You suit up as a heavily armed astronaut soldier and fight intense team-based battles in the vacuum of space, drifting around orbital stations, satellites and debris while Earth turns silently below.
The hook here is movement. With no ground beneath you, every firefight plays out in full 360 degrees—you boost, rotate and anchor to surfaces to line up shots from any angle. Mastering momentum and recoil in zero-g is what separates a rookie from a veteran, so positioning matters as much as aim.
Loadouts and roles: choose from different operator classes and customize your weapons with scopes, barrels and attachments to fit your playstyle, whether you prefer long-range marksman duels or aggressive close-quarters pushes. Coordinated squads who control sightlines and cover each other tend to come out on top.
What you get: a digital Steam key for Boundary on PC. After purchase you redeem it in the Steam client to add the game permanently to your library and jump into online matches.
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