Planet Killer

Planet Killer is a roguelite built around physics-based destruction. Players take the role of a Planet Killer, travelling through hostile space and firing weapons at pixel-based planets that are fully simulated. Each shot permanently alters the target, carving craters in real time, producing shockwaves and setting off chain explosions that cause cascading damage. Terrain fractures and defensive structures collapse under sustained fire.

Planets are procedurally generated, with cities, surface features, cloud and storm systems, continents, islands and oceans varying from one world to the next. The backgrounds of space are also generated, including different star fields, nebulae and galaxies. Planets defend themselves with surface cannons, missile batteries and countermeasures, and later worlds become progressively more dangerous. Runs include elite planets, storm worlds and bosses.

Progression follows a roguelite structure with permanent death at the end of each run. Players choose a starting ship, each with its own strengths and weaknesses, and can unlock more than 128 ships by destroying planets. Loadouts are assembled from hundreds of modular weapons, including missiles, cannons, lasers, rapid-fire barrages and experimental weapons, alongside defensive and utility modules. A galactic shop sells weapons, modules and ship upgrades between encounters. The game also tracks high scores and lets players rank up a personal emblem and title. Planet Killer has been released on Steam and currently holds a Very Positive user review rating from more than 50 reviews.