Cratefall Couriers
AI generated. A physics based delivery game for solo or two local couriers, with shared goals, conveyors, cleaning bots, crew upgrades, route assistance and saved runs.
Screenshots
Screenshots supplied by the seller.
Description
AI generated. Cratefall Couriers turns a floating parcel depot into a short cooperative delivery challenge. Carry lettered parcels to the matching bays, manage momentum and avoid fast bumps that can dislodge cargo. Loose parcels interact with couriers, racks, boundaries and moving conveyors. Cleaning bots cross the floor and can knock a parcel loose.
Play solo or share a keyboard with a second local courier. Both players share the score, delivery quota and crew upgrades. Complete three shifts of 75 seconds each, with three, four and five deliveries for solo, or five, six and seven for a two person crew. Close deliveries build a shared combo.
Choose crew upgrades for speed, pickup reach, parcel durability or boost recovery. Tap a destination for a route around fixed racks, use direct keyboard movement or on screen steering, and use Find parcel or Find bay for navigation assistance. Save a run file or prepare an original PNG crew card. All graphics and optional synthesized effects are original.
Condition
Development stage: Mostly built (seller-declared)
Seller-declared: provided by the seller, not independently verified by SellMyVibe.
- Solo creator
- Mainly AI-generated
- Under one month in development
- Mobile-friendly
- Tests included
- Setup guide included
- Demo available
What works
- Solo and two local couriers sharing one screen and keyboard
- Three timed shifts with crew dependent delivery quotas
- Momentum, circle based collision response and boost cooldowns
- Parcel pickup, drop, durability and matching letter handoffs
- Moving conveyors and cleaning bot collisions
- Automatic routes around fixed racks and on screen route assistance
- Shared delivery combo, score and four upgrade families
- Pause, focus loss pause and restored runs starting paused
- User activated original synth effects
- Saved run JSON and PNG crew score cards
- Responsive layout and reduced decorative motion
What’s unfinished
No online multiplayer, network matchmaking, gamepad support, split screen, account system, cloud save, verified online score, native mobile package or platform store integration. Physical shared keyboard rollover and simultaneous device touch have not been independently tested. Long term retention, viral reach and commercial success have not been measured. Browser download delivery and file picker paths are not fully verified.
Included assets
Full editable browser game source
Original procedural courier, parcel and depot graphics
Original synthesis source
Physics, navigation and delivery behavior tests
Automated solo and duo route tests
Example model generated saved runs
Setup, license and verification documentation
Actual running interface screenshots
Technologies
HTML, CSS, JavaScript, Canvas 2D, Original Web Audio synthesis
Setup requirements
Open index.html or serve the folder with any static web server. Choose solo or two local couriers, then start. Courier one uses WASD, E and Shift. Courier two uses arrows, Enter and /. On screen buttons and tap routes are also supplied. Save before closing. Run node tests.cjs and node balance.cjs for model checks.
Dependencies and ongoing costs
A current browser with JavaScript and Canvas 2D is required. Optional sound uses Web Audio. No third party runtime library, paid API, account or external service is required. Node.js is needed only to run the included development checks. Static hosting may be supplied by the buyer; no paid hosting is included or purchased.
Known limitations
This is a local browser game with one fixed depot and three shifts, not an online cooperative service. Seeds vary the parcel colour sequence and cleaning bot phases, not the rack layout. Physics uses simplified top down circles and axis aligned racks, not a general rigid body engine. Automatic routes avoid static racks but do not predict moving cleaners or other couriers. Parcel to parcel rigid body collision is not supplied. A wrong bay drops a parcel without delivery points. Two player keyboard reliability depends on hardware rollover and browser focus. There is no automatic persistence, cloud account or anti cheat protection. Local save checksums detect accidental edits only. AI generated disclosure appears in the game and listing.
Listings are reviewed for completeness and clarity before publication. Approval is not a guarantee of quality, ownership, security or commercial success. Read the details and ask questions before buying.

