Space Purge

Enemy craft drift down in waves from the top edge while you steer a single ship along the bottom. The job is to clear them before they arrive. It is an old format that anyone who spent time in an arcade will recognise instantly.

What newcomers usually misunderstand is thinking the game is about shooting. Shooting more or less takes care of itself. What decides whether you survive is where you are standing. Being in the wrong place means having no exit when the next wave descends.

The habit worth building is never sitting still in the middle. Keep drifting even during the quiet moments, because starting to move once movement becomes necessary is always a beat too late. A ship already travelling changes direction far faster than one parked in place.