It’s starting to resemble a bit more closely the idea I had in my head when I started:
The game is now fully 3D. It’s a bit more confusing than the purely 2D mode but it does provide some more depth, figuratively as well as literally. To help the player out I’ve given them a ‘proximity alert’ system that highlights in the HUD the tiles which will have bullets/asteroids/enemies/explosions etc. passing through next turn – the red squares in the image above. The object of the game is very simple – don’t be in one of those squares!