Space Pirates and Zombies

Space Pirates and Zombies — usually shortened to SPAZ — is a top-down 2D space combat game built on full physics simulation. Rather than piloting one ship, you command a growing fleet, swapping between vessels, issuing orders, and adjusting AI behavior through a tactics panel mid-battle.

Layered on top is an RPG-style research tree: destroying enemies and exploring star systems yields components and research points, which unlock 33 hull types and around 70 components across 15 upgrade categories.

The galaxy is procedurally generated and persistent, with warring factions, missions, and story beats threaded through hundreds of star systems. A separate zombie infestation builds its own multi-tier ecosystem in real time, four stages deep, and you can ignore it, exploit it, or try to contain it.

Developed by MinMax Games. The setting is a humanity scattered through the galaxy after the discovery of element 126, with the UTA police force turning repressive and civil war breaking out in the core worlds.