Overview
Spiral Wave is a space sim for the PC Engine developed and published by Media Rings.
The player directs a spaceship to various planets, conversing with the native aliens and occasionally fighting them. The game splits its time from the cockpit of the ship, where dialogue scenes and decisions are made, and a Z-axis shoot 'em up in which the player takes down hostiles and asteroids. Through encounters and combat, the player earns energy which can be spent on upgrading their ship.