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Game · FPS & shooters

Blue Nebula

Blue Nebula is a first-person shooter, available on Linux: cross-platform play and level editor.

  • Completely free
  • Linux
  • Open source

Overview

Blue Nebula is a first-person shooter, available on Linux.

Gameplay elements described in its Flathub listing: cross-platform play and level editor.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Free agile arena shooter” — Flathub, 10 November 2026
  • “Blue Nebula is a fast-paced shooter featuring a unique parkour system.” — official website, 10 November 2026
  • “Cross-platform multiplayer” — Flathub, 10 November 2026
  • “Built-in editor lets you create your own maps cooperatively online” — Flathub, 10 November 2026

At a glance

All of Blue Nebula is free: no feature is locked behind a paid plan, and its code is open.

Its content is under a Creative Commons licence (Zlib & CC-BY-SA-3.0+): check the attribution requirement and any non-commercial restriction.

Strengths

  • Open source code
  • Commercial use allowed

About

Blue Nebula is a fun-filled new take on the first person arena shooter, built as a total conversion of Cube Engine 2, which lends itself toward a balanced gameplay, with a general theme of agility in a variety of environments. It features a unique parkour movement system. Cross-platform multiplayer Features parkour, impulse boosts, dashing, and other tricks Favourite gamemodes with an array of mutators and variables Built-in editor lets you create your own maps cooperatively online

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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