Checkpoint!
Show HN: Checkpoint! Airport security sim game built with Claude Fable
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What is Checkpoint!?
Checkpoint! is an airport-security queue simulation game where players manage the physical space of an airport security checkpoint rather than controlling passengers directly. Instead of directing individual travelers, you control the environment: ropes, gates, lanes, and a mall area through which the crowd flows.
The game is built using canvas and TypeScript, with a compact 64 kb file size. It represents a unique take on the simulation genre by focusing on spatial management and crowd flow dynamics rather than traditional point-and-click security inspection gameplay.
Key features include the ability to rearrange rope barriers to create different queue configurations, position gates to control passenger flow, set up inspection lanes, and design the mall area that influences how crowds move through the security checkpoint. The game challenges players to optimize space layout for efficient crowd management.
This tool is ideal for fans of simulation games, queue management puzzles, and crowd dynamics games. It appeals to players who enjoy spatial strategy challenges and those interested in games built with modern web technologies like TypeScript and canvas rendering.
The game was created by yaodub, who builds 'open tools for AI agents, and small games to stay honest.' It represents their approach to creating playable experiences that focus on interesting mechanical concepts.
Checkpoint! pricing
Pricing model: Freemium
Free - The game is playable directly on the website with no cost. It is part of yaodub's collection of small games and is available as a free playable experience.
Checkpoint! pros
- Unique airport-security queue simulation concept
- Control space instead of passengers - novel gameplay twist
- Manage ropes, gates, lanes, and mall areas
- Compact 64 kb file size for fast loading
- Built with modern TypeScript technology
- Uses canvas rendering for smooth visuals
- Focuses on crowd flow dynamics
- Spatial strategy and layout optimization challenges
- Open-source game by independent developer
- Part of yaodub's small games collection
- No need to control individual passengers
- Interesting take on simulation genre
- Web-based and easily playable
- Crowd flow management mechanics
- Creative queue configuration possibilities
Checkpoint! cons
- Very small file size may limit content depth
- No traditional passenger control mechanics
- Limited information about game modes
- No visible scoring or progression system mentioned
- May feel too abstract for some players
- Single gameplay concept without variation
- No multiplayer or competitive features
- Limited visual detail due to compact size
Frequently asked questions about Checkpoint!
What is Checkpoint!
Checkpoint! is an airport-security queue simulation game where you control the physical space (rope, gates, lanes, and a mall) rather than the passengers. The crowd flows through the space you design.
How do I play Checkpoint!
You play by managing the airport security space - arranging ropes to create queues, positioning gates to control flow, setting up inspection lanes, and designing the mall area. Passengers move through the space you create automatically.
What technology is Checkpoint! built with
Checkpoint! is built using canvas for rendering and TypeScript as the programming language. The entire game is only 64 kb in size.
Who created Checkpoint!
Checkpoint! was created by yaodub, an independent developer who builds 'open tools for AI agents, and small games to stay honest.' They also create other projects like Cast, a multiplayer harness for AI agents.
Is Checkpoint! free to play
Yes, Checkpoint! is free and playable directly on the yaodub.com website. There is no cost to access or play the game.
Do I control the passengers in Checkpoint!
No, you do not control the passengers. Instead, you control the space - the ropes, gates, lanes, and mall area. The passengers/crowd flow through the space you arrange automatically.
What elements can I control in the game
You can control ropes (for creating queue barriers), gates (for controlling access points), lanes (for inspection areas), and the mall area (which influences crowd flow patterns).
Is Checkpoint! available on mobile devices
The game is web-based and playable on the yaodub.com website. It uses canvas rendering which works on most devices with a web browser, but there is no dedicated mobile app mentioned.
What makes Checkpoint! different from other airport security games
Unlike traditional airport security games where you inspect passengers or scan bags, Checkpoint! focuses on spatial management and crowd flow. You design the queue layout and space rather than interacting with individual passengers.
Is there a size limit for the game file
Yes, the entire Checkpoint! game is only 64 kb, making it extremely lightweight and fast to load. This compact size is achieved through efficient TypeScript and canvas implementation.