Games like Heat Signature on Steam
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Hacktag
Hacktag is a fast-paced two-player co-op stealth-game with unique asymmetric gameplay. Play as the stealth Agent in the field or as the virtually-infiltrated Hacker and work together to carry out espionage missions where nothing goes as expected!
Interplanetary: Enhanced Edition
In this turn-based strategic artillery game, players wage interplanetary wars by developing their home planets and firing massive barrages through the unpredictable gravity fields of the solar system.
Chicken Invaders 2
Just when you thought it was safe to eat chicken again, the chickens have returned with an organized invasion to take over the entire solar system! Journey to each planet and fight your way through to save the world (again)!
Shadow Corridor 2 雨ノ四葩
Lost forever in the pitch black! But that's what makes it fun! The vast corridors covered in darkness change with each play. All you can do is run or hide from the frightening Apparitions. Use unique items and Karuta cards with special powers in your desperate search for an escape from the darkness!
Blood Feed
Blood Feed - The Mystery of Insectville is FPS depthless and mindless shooter, where you, smashing through the waves of bugs, insects and hordes of most disgusting things that ever roamed the earth, need to unravel the mysterious dissapearance of the whole town, including your family.
Starship Annihilator
A classic style vertical scrolling-shooter. Includes 10 levels and 10 boss enemies. You will have several power-ups for weapon modification. Within each level, you will face different enemies, among which will vary from low to extreme levels of threat!
Creeper World 3: Arc Eternal
Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.
ΔV: Rings of Saturn
A physics-based mining sim, set in the thickest debris field in Sol. Every action has a reaction, lasers are invisible without a medium, and your thrust is a potent weapon. Find trade, adapt your equipment to your playstyle, hire a crew to help. Unravel the mysteries of the rings, or just get rich.
Unstoppable Gorg
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
Basingstoke
Basingstoke is a tense rogue-like that mixes stealth and arcade action. Explore the smouldering ruins of Basingstoke, a world of reanimated undead and ferocious alien monsters. Scavenge as you go, crafting equipment to help you in your mission: escape Basingstoke!
Depths of Fear :: Knossos
Depths of Fear :: Knossos, a Greek-themed, 1st Person, Roguelike stealthy action-adventure where you play as Theseus out to kill the rampaging horror the Minotaur. Succeed in the beast’s slaughter or learn the meaning of fear trying. You will run. You will hide. You will fight. You will die.
Aurora Nights
Aurora Nights is an entertaining educational game for learning to identify the constellations.
Really Big Sky
A super fast, twin analogue shooter for the modern age!
Red Planet Farming
Become the first Agricultural Director of Mars in Red Planet Farming! This casual strategy game tasks players with producing enough food to feed a growing population of settlers on the red planet.
Iron Marines
Real-time strategy battles in amazing sci-fi worlds! Command brave soldiers, mighty mechas and powerful aliens to face the greatest challenges in hostile alien worlds. The galaxy needs you!
Octogeddon
You ARE Octogeddon, a massive mutant octopus with one mission: DESTROY the world! Grow more tentacles and evolve each of them into deadlier and deadlier weapons until you become the ultimate eight-legged killing machine!
Anomaly Warzone Earth Mobile Campaign
Anomaly Warzone Earth Mobile Campaign continues Steam's Anomaly Warzone Earth in an extra 15-level campaign. Originally released on mobile devices, the campaign is brought to Steam for PC, Mac and Linux exclusively in Anomaly Bundle. AWE Mobile Campaign turns tower defense on its head.
Sun Blast: Star Fighter
Sun Blast is the best 3d space shooter on Steam. Earn upgrades as you fight your way through a huge seleciton of levels. Full gamepad support!
Enlightenment
In Enlightenment, you play in a roguelike action-shooter with a fast-paced challenging journey deep into a underground complex called "the Ark". Players will be tested by large varieties of enemies in a procedurally-generated dungeon, and become stronger by learning from the inevitable deaths.
CARNAGE OFFERING Tower Defense
The replicator robots are back! It's 2528. The machines are increasingly infecting the planets with genetically modified monsters. Challenge them and try to stop the onslaught. Upgrade buildings and heroes, mine resources, discover technology and fight to save humanity!
Clandestine
Clandestine is a 2-player or singleplayer stealth/hacking game set in 1996. Asymmetrical co-op allows one player to take the role of the spy while a friend provides overwatch and assistance as the hacker, and unravel a post-Cold War espionage conspiracy.