Star Rupture Calculator is an independent fan-made toolkit for Star Rupture, a sci-fi survival and factory automation game by Creepy Jar. Every number on this site comes from game files extracted directly using FModel — not from estimates, wikis, or other fan sources.
This is an independent fan project. It is not affiliated with or endorsed by Creepy Jar.
Star Rupture is developed by Creepy Jar and released in Early Access on Steam. Players land on Arcadia-7, a hostile planet whose tagline says it all: EVERY. RUPTURE. COUNTS.
The planet periodically tears itself apart during Rupture events, forcing players into shelter while the surface destabilizes. Between Ruptures, you explore abandoned facilities including the Yellowstone and Redleaf bases, descend into the multi-level Forgotten Engine structure, gather resources, build automated production chains, research technology through corporation relationships, and manage critical survival attributes: health, oxygen, temperature, hydration, calories, radiation, toxicity, and infection.
Players choose one of four professions at the start of each run, each with distinct passive abilities:
Faster construction, reduced material costs, improved machine output rates.
Enhanced medical tools, better food processing, improved survival attribute management.
Accelerated research, improved power efficiency, advanced technology access.
Higher combat effectiveness, weapon specialization, enhanced base defense capabilities.
Reputation is earned by exporting items. Each corporation rewards different buildings and character upgrades at progressive reputation thresholds.
All tools run entirely in your browser. No account required. Configurations save to browser local storage and never leave your device.
All game data on this site is extracted from Star Rupture game files using FModel. This includes crafting recipes, building stats, weapon attachment modifiers, corporation reward tiers, creature stats, item values, and survival attribute rates. The data files are stored in src/data/ and are updated as game patches change values.
Star Rupture is in Early Access. Game mechanics, balance values, and content change with patches. Pages that reference specific values include the game version at time of extraction. If you spot an outdated value, report it via email below.
Note on corporation count: The game data files contain nine corporation entries total (including Training Corporation and two internal-use corporations). Six corporations are available to players for active reputation progression in the current Early Access build: Future Health Solutions, Selenian Corporation, Griffith Blue Corporation, Moon Energy Corporation, Clever Robotics, and Claywood Corporation.
Values come from direct file extraction, not community approximations. When the game updates and values change, we re-extract and update the data files.
Every tool works without an account. Saved builds and configurations are stored in your browser's local storage only. Nothing is transmitted to external servers.
No premium tiers, paywalls, or locked features. All tools are available to everyone at no cost.
We track Star Rupture patch notes and update affected data files when mechanics or values change. Tools note the data version where relevant.
Report incorrect data, suggest features, or ask questions:
Email: shwuhen@gmail.com
For bugs or feedback about Star Rupture itself, use the official Creepy Jar support page or the official Discord server.
