Void Havoc
In this sci-fi action/strategy game, you're the only trump card left to stop the Contingency in their destructive march. Man your ship, build your arsenal and blow away the waves sent to stop you in your tracks.
The top results based on the latest update are Universal Combat CE [Score: 0.8], Admirals of Ophiuchus [Score: 0.8] and Space Mission Overdrive [Score: 0.8] The top rated games you can find here are SENTRY [SteamPeek Rating: 5.5] ranked #17, No Creeps Were Harmed TD [SteamPeek Rating: 5.4] ranked #22 and Space Reign [SteamPeek Rating: 4.5] ranked #7 Also don't forget to check the newest releases VRTS [Release date: 2026-05-06] ranked #26, Tower Defense Ultimate: Crashfall Protocol [Release date: 2026-03-31] ranked #12 and Rank: Warmaster Bunker Buster [Release date: 2026-03-24] ranked #18 While it is tempting to play with the newest and the best, there might be some other gems in the results, like SENTRY [SteamPeek Rating: 5.5] ranked #17, No Creeps Were Harmed TD [SteamPeek Rating: 5.4] ranked #22 and.
In this sci-fi action/strategy game, you're the only trump card left to stop the Contingency in their destructive march. Man your ship, build your arsenal and blow away the waves sent to stop you in your tracks.
The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.
Design massive ships, bristling with weapons, on a macro scale. Engage in fleet-vs-fleet battles, featuring many different tactics. Play alone or in Coop combat missions, or form two teams of players (each with own fleet) to fight in an arena.
Defend your planet against the Space Invaders. Build your defences against lovecraftian spacecrafts. Keep your health up and you might even become an invader yourself! Warning: this game contains flashing images that may make it unsuitable for people with photosensitive epilepsy.
Sci-fi RTS and Top-Down
AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.
Design and command a fleet of space warships in a 3D Real-time Strategy game. Customise each of your ships with a wide range of weapons and upgrades. Complete contracts for each of the five factions to gain access to their ships and arsenal. Take control of your ships in 3 dimensional naval combat.
An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements. Complete contracts and Claim sectors for your faction in the near-future, where resource exploiting corporations are in a state of constant conflict over territory control.
Experience cinematic space warfare in SALVO, an action packed real-time tactical combat simulator. Command your flagship and engage in intense battles in a war-torn solar system. Play a story-driven campaign, or forge your own destiny across the dangerous frontiers.
Explore a galaxy of 300 systems as you control your fleet in a top-down 3D style, navigating through Star-lanes, Warp gates, and Black holes. Customize and upgrade your fleet, complete missions, trade, hire your crew, wage war and determine the fate of the galaxy in this grand sim saga.
Command your starship through a galaxy-spanning conspiracy in this real-time tactical roguelike. Manage power, shields, weapons and more. Featuring permadeath progression, seamless portal travel, and intense capital ship combat using Newtonian Physics with Damped Velocity.
Guide your civilization to epic victory in Ephemeris, the upcoming turn-based space war strategy game. Spread your civilization across the galaxy, unlock new tech, design warships and crush your enemies in cinematic, fully 3D real-time space battles!
Defend your base against relentless alien waves in a sci-fi tower defense strategy game. Build deadly kill zones, unlock new towers and special abilities, and adapt your loadout to survive escalating assaults across a hostile campaign.
Defend your tower for as long as you can from the aliens invading your space! Level up, earn money and new units, and strategically place them in the grid!
Autothysis is a first-person tower defense game where strategy meets precision. Deploy turrets, manage resources, and fight swarms of insectoid enemies. Target weak points to shatter foes while upgrading defenses to survive escalating waves. Can you withstand the oncoming horde?
Ancient Space is a story driven single player real time strategy game where you take command of a fleet embarking on a scientific mission to chart undiscovered reaches of space called ‘The Black Zone’. Overcome overwhelming odds and fight for your life and the survival of your ship and its crew.
Mecharise is a strategy and tower defense game that combines elements of base building, resource management, and wave-based combat against hostile aliens. Pilot a mecha as you colonize new worlds and defend your base against enemy attacks.
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.
Tactical control meets strategic execution in this real-time, action tower defense. Develop classes of customized units and leverage different vantage points to defend your stake and ensure your colony’s survival.
Take command of the fleet of starships that is the home to the remnants of your civilization. Manage the limited space of each spacecraft and find the balance between living space, production, defenses, and weapons. Explore the galaxy as you seek refuge and safety from an overwhelming threat.
Be the ultimate CEO and military strategist in this genre fusion of strategy and business management. Create your own company, hire employees, research weapon technology, and take control of units on the battlefield to defend the moon against an alien invasion. Aliens down, profits up!
Embark on an interstellar odyssey of trade and naval combat in StarWinds. Assemble your fleet, navigate dynamic trade routes, and engage in thrilling battles against space pirates. Immerse yourself in this strategic single-player adventure, shaping the cosmos with every decision.
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!
A classic fantasy MMORPG powered by uMMORPG—discover dungeons, fight powerful creatures, forge rare equipment, and shape a living world alongside hundreds of players.
INTERGALACTICORP. is a sci-fi rogue-lite tower defense game where you take on the role of an operator-bot, charged with conducting an intergalactic mining operation. Will you thrive as an efficient miner in this alien environment, or succumb to the dangers that lurk in the depths of space?
A physics-driven tower defense game where one massive cube does everything: fight, build, activate, and survive. Drop into a neon sci-fi battlefield, hold back waves of Chaos Dice, and power up your defenses through energy, momentum, and precision.
VRTS is a VR Real-Time-Strategy game based in space! Command and construct a fleet of spaceships to defeat your enemies. Watch over the battle from your war table and make the ultimate strategy to bring down your adversary.
Sixty basic cores, hundreds of base station equipment, and thousands of chips, you can freely cooperate and shoot through the dual-angle joystick operation in a survival Roguelike game! Explore the sci-fi space and build your strongest battleship!
3D hard sci-fi grand strategy across a procedural galaxy. Build colonies, forge fleets, and command an interstellar empire with information constrained by the speed of light.
A survival RTS game where you defend your village against relentless waves of Norse mythological creatures. Build defenses, train warriors, and gather resources to survive as long as possible. If your Town Hall falls, it's game over. How long will you last?
In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.
AQ2: Expanse is a massively multiplayer space strategy game. A single persistent universe with open PvP and PvE. Fight for control over the Aquila system's sectors in huge corporation wars, play with everyone, play in a group or play solo with plenty to explore.
Customize your Ships, Upgrade your fleet, and Command your way to victory in this ruthless rogue-lite tower defense/real time strategy hybrid. Take on an enemy that learns from your moves and adjusts its own path. Do you have what it takes to persevere?
Pick cards, equip stones, chain color synergies — and survive endless meteor waves. A 3D sci-fi tower defense roguelite where every run builds different and hits harder.
Rise of Mutant Swarms is a strategy survival tower-defense game where you defend the base against waves of evolving mutant enemies. Place and upgrade turrets, adapt to enemy abilities, and make critical decisions as the pressure rises with every wave.
"VOIDCRISIS" is a four-player tower offense game on an undulating battlefield. Operate combat bio-machines called VA (Vital Armor) drawn with dynamic mechanical art shaders and work together to clear high-difficulty stages.
Sci-fi RTS and Top-Down
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