The prices on this page follow the method you pick.
Delivered as a Steam gift, usually within 3 hours.
Includes 2 items: Periapsis: Gravity Slingshot, Galactic Simulator 3. Bundle info
Lead humanity’s final journey beyond the Solar System. Launch ships from fragile worlds, use gravity to bend your path, discover new star systems, and search for planets that could carry civilization forward.
Plan each launch, manage fuel and cargo space, and decide when to scan, deploy, trade, or push deeper into the unknown. Every expedition costs time and resources, and every discovery may open a new route for humanity.
Will you guide humanity to become a multi-planet species?
Skill-Based Launch & Gravity Navigation
Time your engine burns, reach escape velocity, and use planetary gravity to bend trajectories and reduce fuel costs.
Strategic Expedition Planning
Choose what to carry, where to fly, and when to spend fuel — preparation matters before every launch.
Planet Scanning & Orbital Deployment
Scan planets for data, then deploy probes from orbit to recover resources and rare samples.
Star Atlas & Stargate Exploration
Reveal new star systems, travel through stargates, and gradually expand humanity’s reachable frontier.
Ships, Equipment & Colonization
Buy tools, unlock new hulls, seed promising planets, and establish colonies beyond Earth.
The price of Periapsis: Gravity Slingshot in Sri Lanka is Rs. 2,048 on VaultX.lk. Pay in 3 installments with Koko or 4 with Payzy, no international card needed. It is delivered as a Steam gift to your own Steam account, usually within 3 hours of payment. Genres: Casual, Indie, Simulation, Strategy.
The game has potential, but playability is severely hampered by broken progression mechanics tied to resource scarcity. Here are my main criticisms: 1) Starter ship lacks escape velocity warning The initial vessel being too weak to escape strong gravitational fields is understandable by design. However, the game doesn't warn you that you can only reach low-gravity planets. Once you land on a heavy planet, you're trapped with no way to escape = an instant game over with no second chance. 2) Critical resources are too rare Some resources like fossils are extremely rare despite being essential for progression. After 37 minutes of play, I obtained only one fossil from the 3 planets the starting ship can reach safely. Yet five are needed to progress. The game become quickly unplayable. 3) Travel resources deplete too quickly Resources required for travel and planetary scanning drain far too rapidly, forcing constant trips back to the market. This becomes tedious and counterproductive. 4) No incentive to revisit planets Once a planet is explored, there's no reason to return. Their is no way in scanning for new ressource. This severely limits progression paths and resource sources. 5) Cargo management creates a grinding loop Cargo capacity is severely limited, yet each market purchase occupies a slot with no in-game grouping system (unlike the grouped resources at game start). Your cargo fills quickly, forcing repetitive cycles: sell items at market → buy travel resources → return to last planet → collect items you couldn't carry → return to sell. You end up spending more time managing inventory logistics than exploring for rare resources. Worse, once a planet is depleted, you're stuck any planet didn't provide what you needed. Result: After multiple attempts, each lasting only around 10 minutes, I hit an unrecoverable game-over state with no resources and no way to progress. Requested reimbursement.
5 found this helpful
Spent 10 minutes trying to figure out what to do before I simply asked for a refund. Game contains no instructions, goals, tips, tutorials... nothing.
Our journey will take us across the stars! We will search the vastness of space for habitable planets! However, I feel that the game’s treatment of gravity assists and warp travel is still rather superficial—they currently do little more than alter routes and resource consumption.
I really tried to give this game a chance because I love hard sci-fi and the concept looked cool, but it's extremely buggy and kinda lacking in content. Obvious bugs include: - Stacking doesn't work correctly, and there's no drag and drop. The only way to combine stacks is through the "sort" button, which is finnicky. - High-gravity planets are impossible to leave. "Escape velocity" is not escape velocity. Sometimes the gravity of a planet will be high enough that reaching escape velocity just sends you back down into the planet. - Founding a colony before using your scan data makes it do nothing when "used" except delete itself. - Using "consciousness backup" does not drop your items into planet loot and just deletes them, you have to transfer it manually. Once you get through the first few stages, it's just more of the same - you go to a planet, you scan it, you go back to a colony to sell stuff.
4 found this helpful