Top similar games like Signal Zero:

lone.AI is a space RPG roguelite. With challenging, relentless gameplay, each run has the potential to boost your ship's power, speed, and more. As a lone AI, fight your way through the solar system and uncover the secret behind the ZOSMA, an alien race that holds power over the system.

A top-down rogue-like shooter. Customize your weapons with looted upgrades to stay alive as long as possible.

A 3D Sci-Fi space shooter game where you fight against big flagships and bases to unlock the secrets of the world.

Survive the Rift is a roguelike shoot 'em up with procedurally generated levels, unlockable ships, and plenty of items to make each run unique. Inspired by classic 16-bit era scrolling shooters with modern roguelike game mechanics.

In Deadline: Aphelion, you play as a mercenary tasked with defending the research facility from the hordes of alien spiders that have been drawn to it. 

Into The Deep - a rhythm roguelike game where you must dive into the ocean and clear it from music-corrupted ocean creatures!

Our planet's trading port is under attack by an alliance of raiders, defend the station and attack the intruders.

Consortium’s Fall is a sci-fi roguelite twin-stick shooter about a people’s budding rebellion against a ruthless oppressor. Infiltrate enemy territory, defeat those who stand in your way and uncover secrets necessary to free your people once and for all.

Oftalmogarden is a fast and chaotic roguelike sci-fi eyeball monster shooting game. Shoot your way through hordes of enemies, collect upgrades, weapons, and gadgets to grow stronger, but accumulate curses over time. Speed is your best ally to survive, the sky is watching and death will not wait.

Weaponized is a violent vector shooter. You are an asteroid miner whose employer recently expanded into mining hell. Use your machine gun to carve through asteroids and extract ore. Grab and hurl enemies, snipe through rocks, fight massive bosses. Make your quota and get out before it's too late.

Shoot to move. Move to survive. A space action roguelike about momentum, chaotic battles, loot, builds, and bosses.

Your homeworld was destroyed by The Zardians an alien species, and you are the sole survivor. Your missions? Making them pay.

Beyond Lost Planets is an intense Roguelike Dungeon Crawler Bullet Hell. Fight through enemies and bosses across procedural worlds. Everything from weapons and bullets to powerup and companions is represented with cards. Grow absurdly powerful and create wild, unique synergies every run!

HOMESIDER SURVIVORS is a single player survivor-like auto-shooter. You find yourself far from home against countless hordes of aliens...but they're the ones who have to survive, because they kidnapped the wrong guy. Kill, die, level up, and try again until you get home.

CYBRID: Survivor - is a single-player shooter with survival elements. Use your entire arsenal, fight hordes of robots, mine resources and unlock powerful upgrades as you clean up the streets at night. You are alone, against everyone!

SWARM HARVEST is a survivors-like auto-shooter where you command a growing army of drones and deployable towers. Carve through endless alien swarms and evolve into an unstoppable bug-blasting machine with absurdly overpowered builds.

The frontier has a monster problem, a bandit problem, and apparently a "your life expectancy" problem. Survive the horde, loot the General Store, and die with style. Refunds not available. Neither is mercy.

Code of Shadows is a fast-paced roguelite where you don't just deploy drones, you command them. Switch modes mid-fight, fuse drones into stronger ones, and cut through rift-spawned hordes across collapsing dimensions.

A top-down space survival roguelite. Harvest crystallized spacetime, build your arsenal from 40+ absurdly named weapons, and hold off increasingly hostile void entities until the universe runs out of things to throw at you. It usually doesn't.

Become an unstoppable force in this intense high-speed space combat roguelike. Master the Specter Drive’s displacement dash, build a devastating arsenal with your companion Merlin, and grow more lethal with every mission as you spearhead the counter attack across a solar system under siege.

Dark Galaxy is a fast-paced action roguelike top-down shooter. Pilot a space drone to battle an invasive insectoid species. Illuminate the darkness and grow stronger as you travel to different star systems. Can you free our galaxy from the invaders?

Meteor Rush is a high-intensity space Bullet Heaven where you defend a fragile core against endless cosmic threats. Harvest meteor gems, loot powerful gear, and evolve your ship and core into an unstoppable force of destruction.

The galactic empire is under siege from the rebel scum in all directions! Fight through endless waves of rebel ships using all of the weapons and resources at your disposal as you execute your sole orders: to Crush The Rebellion!

Spaceflight action for the new age! Push your piloting skills to the ultimate test, blast and burn your way through swarms of starfighters, merciless armadas and colossal behemoths in an epic roguelike campaign that spans the cosmos. Easy to learn, tricky to master, and impossible to put down.

Astragene is a roguelite shooter where you will have to survive each level facing hordes of aliens. Improve your abilities, choose new upgrades, and create reactions by generating combinations of powerful elements. Each game will be different, will you be able to adapt?

Coop rogue-like extraction shooter about self-sustained modular drones on sphere shaped alien-full planet. In this game you will maintain workability of mothership and drones by recycling anything that is not attached to floor.

A sci-fi roguelike about a lone pilot on a forbidden mission through his galaxy. Piece together his story as you scavenge to build your loadout in this procedurally generated space shoot'em-up.

Galandrix is a rogue like arcade game played from a top-down view and features both fast-paced action and real time strategic choices. Select your ship and blast off into the unknown against countless hordes of enemies.

Astro Miners is a thrilling space action game: blast meteors to harvest resources, battle rival factions in their airspace, and survive anomalies and black holes. Exchange fragments for Credits to upgrade dual-weapon ships and unlock powerful modules. Purchase now and conquer the void!

Sanctum Arcadia is a game where you must fight your way through increasingly dangerous zones filled with enemies, hazards, and mystery. Sanctum Arcadia has a unique but still familiar progression system, challenging and engaging combat, all in a smooth Arcade-like experience.

Starshot is a difficult space shoot-em-up with rogue-like elements and randomly generated levels. Will you be able to upgrade your ship and pilot it to safety, or be destroyed in your search for stardust inside the automated production facility?

A neon arcade roguelite with no gun. Momentum is the only weapon: surf the dark at full speed and ram everything to wreckage. Ten shifting zones, anomalies you can seal or exploit, mutations that evolve, guardians that shatter. The stars are not ready. Go anyway.

This roguelike spaceshooter pits waves of enemies against you in your pursuit to reach the end of the galaxy. Improve your ship with permanent upgrades and select temporary upgrades during a run to pursue achievements and and kill bosses.

This is a rogue-like top-down shooter where you control a spaceship that is sent out to explore the caves on the Moon. Once you enter the caves, you find out that there are enemies. It is up to you to survive against them while also trying to find the path down to the next level of the caves.

Echoes of Elpis is a twin-stick shooter sci-fi roguelike. Upgrade weapons, discover new tech, and uncover a secret past as you battle through Elpis on an epic treasure hunt.