Orbithrum

Orbithrum is a compact three-dimensional gravity puzzle about reading space, shaping a trajectory, and committing only when the route is stable. You inherit a drifting orrery hall filled with sleeping worlds. Each city is waiting for a beam of lost starlight, and the only tools available are wandering moons whose gravity can bend that light back toward its destination.

Moon placement is the heart of every puzzle. A moon's position determines the direction of the bend, while its distance from the projected route determines how strongly it pulls. Several moons can combine their influence across different orbital planes. Drag empty space to orbit the camera, drag a moon along its luminous track, switch orbital planes when a world provides more than one, and use Center whenever you want to return to the standard puzzle view.

Preview runs the same fixed-step gravity simulation used by Release. It reveals the reproducible path through planetary occlusion, moon collision zones, debris, energy loss, and directional city receiver cones. A stable Preview enables Release, turning your tested arrangement into the final flight. Failed attempts keep their deterministic seed, so retrying is about understanding the geometry rather than waiting for a luckier result.

The current release contains three authored worlds, twelve distinct pulse layouts, twenty-four collectible city sigils, and twenty-four Moon Accords. Each world is a four-pulse run. After every successful pulse, choose one of three non-repeating Accords that can alter mass, gravity softness, orbit capacity, receiver size, energy loss, visible Preview length, or reward risk. Runs are designed to last roughly three to five minutes while still supporting score improvement and route experimentation.

Star Sand pays for Accord redraws, Orbit Seals track restoration progress, and completed trajectories can be revisited in the world archive. Advertising is always optional and initiated by the player. It can provide a single pulse recovery, a free Accord redraw, or a reward boost, but it never places moons, exposes a solution, or imposes a mandatory energy timer. Every image is rendered from the real Godot mobile scene. Orbithrum does not promise online competition, multiplayer cooperation, or free-flight space exploration.

Controls / 操作
Orbit the camera by dragging empty space; drag moons along their tracks; switch Orbit Plane when available; use Center to reset the view; Preview to test; Release to commit.