G Prime — Steam capsule
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G Prime Free Download

by Code-Monkeys

Windows · macOS · Aug 18, 2016

Download Now Data checked on Steam: Oct 20, 2026
Fit check

Is G Prime worth it for you?

We tell you who should skip it, too.

Play it if you…

Good fit
  • Puzzle players who enjoy plotting rocket trajectories through hazards
  • Simulation fans who want physics-based space challenges
  • Players interested in story-led puzzles with corporate choices and space exploration

Skip it if you…

Saves you a refund
  • Players seeking broad exploration may find the rocket-launch puzzle structure too narrow.
  • Players who want relaxed play may bounce off the increasingly challenging gravity fields and limited afterburner.
  • Players looking for factory-building puzzles may prefer a game centered on constructing and operating production systems.

Drafted from Steam store data with AI and reviewed by an editor · How we write fit checks · Report an error

Our take on G Prime

The bounce point arrives when aiming alone stops being enough: players must read each gravity field, route around obstacles, and spend the limited afterburner carefully. Anyone seeking a looser space experience may stop at this trajectory-focused puzzle structure.

What is G Prime?

G Prime is a steampunk-styled 3D puzzle game about piloting sub-etheric reconnaissance rockets through an asteroid cloud called The Rain.

Players set each rocket’s speed and trajectory, launch it into gravity fields, and use slingshot paths around obstacles to ping targets. A limited afterburner allows mid-course adjustments. The stages introduce increasingly difficult fields containing iceteroids, theophosphorus, and quicksand clouds. The game includes a tutorial, a space-station walkthrough, camera-view options, and a scorecard. Its story follows a sounding officer aboard Ptolemy Station, charting valuable materials for competing corporations with different reward models. Hand-painted artwork and atmospheric music accompany the puzzle gameplay.

How G Prime plays

01Gravity-field navigation
Rockets travel through changing fields containing iceteroids, theophosphorus, and quicksand clouds.
02Trajectory adjustments
A limited afterburner permits course corrections after launch.
03Target pinging
Successful routes involve sending rockets around obstacles to contact marked targets.
04Corporation choices
Several corporations offer different reward models.
05Space-station walkthrough
A tutorial and station walkthrough introduce the game’s systems.

G Prime compared to similar games

SpaceChem focuses on constructing factories that convert raw materials into chemical products, while G Prime centers on launching rockets through gravity fields to ping targets. G Prime adds a story, corporation choices, and space-station presentation rather than SpaceChem’s reactor-engineering workflow.

G Prime: platforms & release

Is G Prime worth it?

It is worth it if: puzzle players who enjoy plotting rocket trajectories through hazards. Skip it if: players seeking broad exploration may find the rocket-launch puzzle structure too narrow.

Where can I download G Prime?

Use the Download Now button on this page: it opens G Prime's store page, where you can choose how to get it.

What platforms is G Prime on?

Windows and macOS.

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