Spin Vector

# Spin Vector

A neon twin-stick shooter with adaptive music, persistent drone upgrades, handcrafted level gimmicks, and escalating endless waves.

Pilot an upgradeable vector drone through ten arcade arenas. Each level has its own twist, from rhythm-locked combat and gravity wells to sticky tar fields, portal gates, lightning storms, comet showers, and a final singularity core.

Clear the 12 planned waves in each level, then choose whether to bank your credits or push into endless mode for reduced rewards and rapidly escalating danger.

## Features

- Mobile-first twin-stick controls

- Keyboard/mouse and controller support

- Backbone/controller-friendly play

- Ten themed arcade levels

- 12 crafted waves per level

- Optional endless mode after each level

- Gauntlet mode

- Persistent credits and hangar upgrades

- EMP blast, shield upgrades, ricochet shots, beam weapons, and temporary powerups

- Cosmetic unlocks in the Questionable Shop

- Difficulty options

- Pause menu with volume and gameplay settings

- Particles, screen shake, synth SFX, neon bloom, and 3D-style arcade presentation

- Adaptive music powered by the Pocket Chordsmith engine

## Pocket Chordsmith music engine

Spin Vector uses a lightweight in-game music engine based on my browser music tool **Pocket Chordsmith**:

https://samfa12.itch.io/pocket-chordsmith

The first level, Pulse Reactor, is built around music running at 118 BPM. The combat language follows the beat: shots, enemy attacks, warning pulses, and level events lock to musical subdivisions.

The other levels use Pocket Chordsmith song data played back live in the game, with each track written to suit that level’s mechanic and mood.

## Controls

### Mobile

- Left stick: move

- Right stick: aim and fire

- Tap the ship when EMP is ready: EMP blast

- Pause button: pause/settings

### Keyboard and mouse

- WASD / arrow keys: move

- Mouse: aim and fire

- E or Q: EMP blast

- Escape: pause

### Controller

- Left stick: move

- Right stick: aim and fire

- Right trigger: EMP blast

- Start/Menu: pause

- D-pad or sticks: navigate menus

## Beta note

This is a beta build. The main systems are in place, including ten levels, upgrades, settings, adaptive music, level select, wave progression, endless mode, Gauntlet mode, and cosmetic unlocks.

Balance, difficulty, and level polish may still change. Feedback, bug reports, balance notes, and feature requests are welcome on the itch page.