Games like Signal Zero
If Signal Zero is your kind of game, the closest matches are Cluster - Roguelike Tower Defense, Out A Space and Curse of Deflection — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Signal Zero: A sci-fi roguelike shooter where aim and movement are unified into one mouse. Pilot a Simuler, command your ship, deploy escorts, and tear through colossal bosses. Easy to grasp, ruthless under pressure.

Players who liked Signal Zero also play
Steam players who put hours into Signal Zero also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Cluster - Roguelike Tower Defense
WHY THIS
Top pick for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Signal Zero.
A roguelike tower defense game where you strengthen your single tower through a tactical cluster board. Rotate, connect, and optimize cluster cards between waves, survive 30 waves, and take on Hardcore Endless mode with online leaderboards. Will you be able to keep up with the best?
Out A Space
WHY THIS
Second-strongest match for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action with Signal Zero.
Out A Space is a fast-paced, top-down space roguelike combining arcade action with tactical fleet management. Deploy your fleet on a pre-battle grid, customize ship loadouts, and chain weapon effects to shatter enemy armadas from your flagship as you cross the galaxy to uncover an ancient secret.
Curse of Deflection
WHY THIS
Third-strongest match for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Signal Zero.
Curse of Deflection is an action roguelike where you bounce through a dungeon. Hit enemies with your weapons but watch out for where your trajectory leads next. Choose an adventurer and enter the dungeon to find loot and powerful weapons. Choose your build carefully because death comes at you fast.
Astrum Vanguard
WHY THIS
Ranked #4 for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Signal Zero.
In Astrum Vanguard, a 2D horde-survival with bullet hell components, you pilot and upgrade your spaceship to defeat countless alien creatures. Survive the endless onslaught in the cosmic battlefield!
Null Orbit
WHY THIS
Ranked #5 for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action with Signal Zero.
Put together experimental weaponry to fill the screen with bullets and defend yourself from endless waves of foes
ActionSteam ↗Cosmic Mart
WHY THIS
Ranked #6 for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Signal Zero.
Step into Cosmic Mart, the space supermarket where the deal of the day is certain death. Wipe out the relentless alien infestation devouring the facility in this frantic action roguelike. Choose your mercenary and survive long enough to reach the sixth floor.
Drone Break
WHY THIS
Ranked #7 for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Signal Zero.
Run and Gun Roguelite where the goal is to upgrade each consecutive alien drone on death so the next can strive to become overpowered enough to escape the all consuming hive mind.
Galactic Mecha GunSuit
WHY THIS
Ranked #8 for Signal Zero fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Signal Zero.
A linear danmaku shoot-em-up with some visual novel elements. Clear 6 stages across 4 difficult settings, each with unique enemy spawns, bullet patterns and boss phases. The game is structured to have each difficulty cleared in sequence, with the full plot unfolding across each one.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Life is Strange - Episode 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Adventure with Signal Zero.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Signal Zero.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
STRAFTAT
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Signal Zero.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
Counter-Strike:Global Offensive
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Signal Zero.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
The Expendabros
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Signal Zero.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
Disfigure
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Signal Zero.
Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!
The Lab
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
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Head-to-head comparisons
Frequently asked about Signal Zero
- What games are most similar to Signal Zero?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Signal Zero are Cluster - Roguelike Tower Defense, Out A Space, Curse of Deflection.
- Who developed Signal Zero?
- Signal Zero was developed by Seosul Games.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Signal Zero.
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