AIOS Arcade is now open. Four browser-native WebXR games are live at /games: PHI Breaker (lattice shooter, 528 Hz ACTION), Lattice Dodge (PHI survival, 417 Hz LOCATION), Lattice Builder (PHI sequence puzzle, 852 Hz PHYSICS), and Merkaba Ghosts (8 AI ghost agents, gaze-attune mechanic, 639 Hz DIALOGUE). Every mechanic is derived from PHI=1.618 geometry and harmonic lattice design. Works in any desktop browser. Full VR on Quest 2/3. No install, no account, free to play.