Orbit Physics Puzzle Guide: Gravity, Trajectories & Stable Orbits

Orbit is a physics puzzle game where you launch a satellite and use planetary gravity to guide it into a stable orbit. It starts simple — one planet, one launch — but quickly evolves into multi-body gravitational puzzles that require precision, patience, and a solid understanding of how gravity works in two dimensions. This guide covers everything from basic orbital mechanics to advanced slingshot techniques.

Understanding Gravity: The Basics

Every planet in Orbit exerts a gravitational pull on your satellite. The strength of this pull depends on two things: the planet's mass (indicated by its size) and your satellite's distance from it. Gravity follows an inverse-square relationship — doubling your distance from a planet reduces its pull to one-quarter strength. This means small changes in your launch angle can produce dramatically different trajectories.

Larger planets have stronger gravity and wider "capture zones" — the region where their pull is strong enough to bend your satellite's path significantly. Small planets might barely nudge your trajectory unless you pass very close to them. Before launching, take a moment to note the relative sizes of all planets on the level. The biggest planet is usually the one you'll be orbiting or using as your primary gravitational anchor.

Launch Angle and Power: Getting It Right

Your two inputs are angle and power. Angle determines the initial direction of your satellite, and power determines how fast it leaves the launch point. The key insight is that these two variables interact: a high-power launch at a slightly wrong angle will miss by a huge margin, while a low-power launch at a slightly wrong angle might still get captured by a nearby planet's gravity.

For most levels, start with moderate power. A satellite moving too fast will fly straight past the target planet — gravity won't have enough time to bend its path. A satellite moving too slowly will get pulled straight into the planet and crash. The sweet spot is a speed where gravity curves your path into an ellipse that gradually tightens into a circle.

• Low power: Use when the target planet is close or very massive. The satellite needs less speed because gravity will do the work.
• Medium power: The default starting point for most levels. Gives gravity time to curve your path without overshooting.
• High power: Needed for distant targets or when you need to escape one planet's gravity to reach another. Use sparingly.

Achieving Stable Orbits

A stable orbit happens when your satellite's forward momentum perfectly balances the inward pull of gravity. Too much momentum and the satellite flies away; too little and it spirals inward. The visual cue for a stable orbit is a path that traces roughly the same loop over and over without getting noticeably closer or farther from the planet.

The easiest way to achieve a stable orbit is to aim your launch so the satellite approaches the target planet at a tangent — not directly toward it, but to the side. Imagine the planet is a clock face. Instead of aiming for 12 o'clock (straight at it), aim for 3 or 9 o'clock so your satellite sweeps past the edge. Gravity will curve your path around the planet, and if your speed is right, you'll settle into orbit.

• Aim tangentially, not directly at the planet. You want to pass by it, not crash into it.
• Watch the trail: If your orbit is expanding, you launched too fast. If it's shrinking, you launched too slowly.
• Circular orbits score better than highly elliptical ones. Fine-tune your power to make the orbit as round as possible.

Gravitational Slingshots

Some levels require you to use one planet's gravity to accelerate your satellite toward a second planet. This is the gravitational slingshot, and it works because your satellite picks up speed as it falls toward a planet and carries that speed with it as it swings away.

To execute a slingshot, aim your satellite so it passes close to the first planet on the side facing away from your ultimate target. As your satellite swings around the planet, it will be flung outward in a new direction with increased velocity. The closer you pass to the planet, the sharper and more powerful the slingshot effect.

Timing is everything with slingshots. You need the exit angle from the slingshot to point roughly toward your target planet. This often means launching at an angle that seems completely wrong at first glance — you might aim away from your target, trusting the slingshot to redirect you. Practice on the early slingshot levels to build intuition before tackling the complex multi-slingshot puzzles.

Multi-Planet Levels: Managing Competing Gravity

The hardest levels feature three or more planets, each pulling your satellite in different directions. The challenge is that these gravitational forces add together, creating complex curved paths that are difficult to predict without practice.

The key strategy for multi-planet levels is to think of the journey in segments. Don't try to plan the entire trajectory at once. Instead, focus on the first gravitational interaction: which planet will your satellite encounter first, and what direction will it be heading afterward? Then think about the second interaction, and so on.

• Identify the dominant planet — the largest or closest one that will have the most influence on your satellite's path.
• Plan one interaction at a time. Get the first curve right, and the rest becomes easier to predict.
• Use smaller planets as course corrections. A small planet near your path can provide a gentle nudge that redirects your satellite without a dramatic slingshot.

Reading Your Trajectory

Orbit shows a preview trail when you aim your launch. Learn to read this trail carefully — it is your most valuable tool. A trail that curves gently toward a planet and then straightens out means you're passing too far away for capture. A trail that curves tightly and spirals inward means you'll crash. The ideal trail curves around the planet and begins to loop back.

Pay attention to how the trail's density changes. Where the dots are spread far apart, your satellite is moving fast. Where they cluster together, it's moving slowly. You want the dots to be evenly spaced around your target orbit — this indicates consistent speed, which means a stable, circular orbit.

On levels without a preview trail, you'll need to rely on intuition built from earlier levels. Start with small adjustments to your angle and power, and note the results. Most levels have a relatively forgiving capture zone — you don't need pixel-perfect accuracy, just the right general approach.

The Minimalist Approach to Complex Levels

When a level looks overwhelming — five planets, debris fields, moving obstacles — resist the urge to overthink. The designers always include an elegant solution, and it's usually simpler than you expect. Look for the path of least resistance: which route passes near the fewest obstacles and uses the fewest gravitational interactions?

Often the intended solution uses just one or two planets even when five are present. The extra planets are either distractors or minor course-correction tools. Try the simplest possible approach first: a direct tangential shot at the target planet with moderate power. If that doesn't work, add one gravitational assist and try again. Build complexity only when simplicity fails.

• Start simple: Try a direct approach before attempting complex multi-planet routes.
• Add complexity gradually: If a direct shot doesn't work, add one slingshot. Then two. Don't jump to the most complex solution first.
• Experiment freely: Each attempt teaches you something about the level's gravitational landscape. Failed attempts are data, not wasted time.

Advanced Tips for High Scores

Scoring in Orbit rewards efficiency: fewer attempts, tighter orbits, and faster completion times all contribute to a higher score. To maximize your score, aim for the solution with the fewest launches and the most circular final orbit. A perfect circle scores significantly higher than a wobbly ellipse.

Speed bonuses reward quick decision-making, so once you understand a level's layout, commit to your shot rather than endlessly adjusting. Two confident attempts will score better than ten hesitant micro-adjustments. Trust your instincts, learn from each result, and you'll find yourself clearing levels in one or two shots consistently.