Zamb! Redux
Buy
Parent game
Play as two special operatives and fight your way through a mad scientist's secret asteroid base whilst defending yourself against his army of evil mutants. Develop the skills of your agent, increase their power and overcome 24 uniquely challenging levels which get harder as you progress. Play solo, or draft in a loyal friend for epic co-op action. Use everything at your disposal in order to eliminate the mutant army and put a stop to their evil before it spreads across the universe.
Could be interesting
Humanity is under siege as the full force of Mental’s hordes spread across the world, ravaging what remains of a broken and beaten civilization. The last remaining resistance to the invasion is the Earth Defense Force led by Sam “Serious” Stone and his heavily-armed squad of misfit commandos. Croteam returns with a high-powered prequel to the Serious Sam series that scales up chaos to unprecedented levels. The classic Serious Sam formula is revamped by putting an unstoppable arsenal up against an unimaginable number of enemies that requires players to circle-strafe and backpedal-blast their way out of impossible situations.
Escape Machines is an addictive Science Fiction single/multi-player/co-op adventure shooter in the near future! Artificial intellect and robots fight against their creators. You must take control of the robots and save people.
Star Control II, the sequel to the original Star Control, is a space adventure game that features role-playing elements alongside a 2D space ship melee combat system. The player assumes the role of The Captain of a single starship wandering a detailed environment of solar systems, gradually gathering information and resources in order to defeat a mysterious and implacable enemy.
The spiritual successor to the epic strategy-shooter Void Bastards, Wild Bastards is a hybrid FPS/strategy game with heart-pounding tactical combat, detailed management systems, and a roguelike campaign. Saddle up and lead the most notorious outlaws in the galaxy.
In Concord, you play as the crew of the Northstar—a group of guns-for-hire known in our galaxy as Freegunners. The Freegunners roam the stars taking high-stakes jobs on worlds across Wild space, where they face other fiercely competitive Freegunner crews. From match-to-match, you’ll form your team of Freegunners with other players and battle it out with rival crews to take home the reward across a variety of maps and modes.
Explore the mysterious Wall World on your giant robospider: mine for valuable resources, upgrade your equipment to fight off hordes of monsters, and discover exotic biomes in-between attacks. Will you be able to survive and learn the secrets of the Wall World?
Brutal John is a fast-paced ultraviolent old school FPS combining crazy storyline about saving the world from the mining technlogies, with inspired gameplay from the best shooters of the '90s. Rip apart alien enemies, destroy mining technologies, save the world.
Sentry is an action-defense first person shooter where you defend your spaceship against a relentless alien threat. Use traps, turrets and environmental destruction to repel invading hordes and engage the enemy in fast-paced FPS action across a dynamic singleplayer or co-op campaign.
Rise up and play with up to three friends in this ever-evolving cooperative multiplayer, roguelite shooter. Explore multiple biomes, mini games, find hidden chests, and defeat numerous enemies and bosses.
Blast your way through gangs, corporations, cults, and corrupt governments in a fast-paced, brutal top-down shooter, kill or die, learn and repeat. Located in a dystopian future not so far away, you will witness the conflicts of a group of rebels trying to be free.