The Moonstone Equation
Offers
Screenshots

About The Moonstone Equation
The Moonstone Equation is a single-player puzzle-platform game about science and curiosity, presented in modern pixel art. You guide Alice as she arrives at a remote hilltop research facility and begins living and working with the scientists, theorists and oddballs who call it home. The facility was built to investigate mysterious inscriptions carved into moon-rock pieces found buried in the hillside.
Explore the facility
You can explore and investigate the world at your own pace, solving puzzles and discovering—and shaping—the narrative as you go. The game has very little threat and no enemies, with puzzles for you to take time to work through. Its story lasts 12 or more hours.
A responsive world
The world changes and responds to when and how often you play. The facility’s time of day matches yours, and its colourful characters also respond to your play. Playing at different times may reveal something new.
Pixel-art world
The game uses bespoke tools and a custom engine to present a crisp, high-definition pixel-art world with modern rendering technology.
Frequently asked questions
The best price for The Moonstone Equation is $8.03 at Kinguin. That is 19% less than on Steam, where it costs $9.99. 7 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and The Moonstone Equation stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for The Moonstone Equation are: Windows 7, GeForce 440, Intel Core 2 Duo, 2 GB RAM, 300 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. The Moonstone Equation is a single-player game.
No. Valve rates The Moonstone Equation as Unsupported on the Steam Deck.
Buy The Moonstone Equation 19% cheaper than on Steam.
The Moonstone Equation is available for 19% less in shops such as Kinguin, Driffle, or GameBoost.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.













