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Alien Motion Tracker Posts

Alien Motion Tracker devlog posts: building a phone-based Alien RPG prop, fixing network reliability, compass drift, and table-friendly calibration.

  • Fixing the Alien Motion Tracker App: When Every Phone Lies About North

    Fixing the Alien Motion Tracker App: When Every Phone Lies About North

    May 25, 2026

    How can a phone compass be wrong enough to send an Alien RPG echo behind the player?

    #alien-rpg#alien-motion-tracker#dev-log#gm-tools
    Read more →
  • Building the Alien RPG Motion Tracker: Immersion Without Friction

    Building the Alien RPG Motion Tracker: Immersion Without Friction

    May 16, 2026

    Why does making a phone go beep at the right time take 2,000 lines of code?

    #alien-rpg#alien-motion-tracker#dev-log#gm-tools
    Read more →

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