A physics-based lockpicking simulator with no dice rolls or hidden checks. Learn how cylinder, combination, and disc-detainer locks work, then put your lockpicking skills to the test.
DESCRIPTION SUPPLIED BY THE DEVELOPER THROUGH STEAM
Inside the game.
Screenshots supplied by TheNakedCat through Steam.
Check the official page for current availability, supported devices and any in-game purchases.
ANSWERS FOR YOUR FIRST SESSION
Shear line gameplay guide and player questions
Steam edition · Researched Nov 8, 2026 · Guide updated Nov 8, 2026.
Source facts
How does the game determine if a pin successfully sets?
A pin sets because you held it right, not because you invested 9 points in your lockpicking skill. The game relies on your manual input rather than character statistics or hidden dice rolls to determine success.
What is the core objective of the Lock Streak mode?
In Lock Streak, your goal is to unlock as many locks as possible within a five-minute time limit. This mode tests your speed and proficiency with the various lock mechanisms featured in the game.
Can I customize the complexity of the locks I practice on?
Yes, you can use the lock editor to create custom locks ranging from one chamber up to sixteen chambers. This allows you to scale the difficulty according to your current skill level and learning goals.
What happens if I enter an incorrect share code in the editor?
If you mistype a share code, the game will simply fail to load the lock. It does not decode into a different or incorrect lock, ensuring that you only interact with the specific design intended.
Does the game feature scripted lockpicking sequences?
No, the game does not use scripted sequences. Every challenge arises from the physical shapes of the components, such as the driver profiles, meaning your success depends entirely on your understanding of the mechanical interactions.
What types of driver profiles can I expect to encounter?
You will encounter eight different driver profiles while playing. These include spools, serrations, mushrooms, and other more difficult shapes designed to challenge your ability to set pins correctly within the cylinder.
How does the game simulate the internal structure of a lock?
The game provides a cutaway cylinder view that displays the springs, drivers, and the shear line where the plug meets the shell. This visual representation helps you understand exactly how the internal components function during picking.
Are there any combat or story elements to progress through?
There is no combat, story, daily content, or loot systems in this game. The experience is strictly focused on the simulation of lockpicking, where the lock itself serves as the entire game content.
What specific types of locks are available to practice on?
The game allows you to practice with cylinder locks, combination locks, and disc-detainer locks. You can learn how these different mechanisms work and try picking them yourself without needing to purchase any physical tools.
How can I share my custom lock designs with others?
You can share your custom lock designs using short codes generated by the lock editor. These codes are brief enough to be read over the phone, making it easy to share your creations with other players.
AI-assisted research with automated evidence and consistency checks. Good Game Daily organizes publisher information into practical answers. Guidance is an editorial interpretation of those sources. These notes are based on source research rather than a firsthand playtest; editions and later updates may differ.
YOUR NEXT STEP
Check the fit before you install
For Shear line · Steam edition.
Compare your device with the listed Windows requirements. Controller support is not verified here.
Steam lists single-player support. Read the developer’s requirements if you need to play without an internet connection; single-player does not by itself establish offline access.
The full-game US price snapshot is 0.99 USD; check the current price in your region.
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 (64-bit) Processor: 64-bit dual-core, 2.0 GHz or faster (Intel Core i3-4000 series or similar) Memory: 1024 MB RAM Graphics: Any graphics with OpenGL 3.3 or DirectX 11 support Storage: 200 MB available space
macOS minimum requirements
Minimum:
Linux minimum requirements
Minimum: OS: SteamOS 3, Ubuntu 20.04 or another 64-bit distribution released after 2018 Processor: 64-bit dual-core, 2.0 GHz or faster (Intel Core i3-4000 series or similar) Graphics: Any graphics with OpenGL 3.3 support Storage: 200 MB available space
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