Top similar games like Space Annihilator:

They buried the truth. The invasion did not end. Now it is coming home. Grave Orbit is a dark sci-fi survival campaign of relentless escalation, impossible odds, and a war that grows far beyond anything humanity was prepared to face.

Tower Tactics Arena is a fast-paced action roguelite set in the Tower Tactics: Liberation universe. Battle relentless enemy waves in a closed combat arena, level up your towers strategically, and gather powerful trinkets and potions! Will you claim victory in the arena?

A run based, action autobattling, deckbuilder/deckfighter! Choose the enemies you want to engage, discards the ones you don't, unlock, discover and guide autonomous drones, acquire items like components, munitions, hacks and modulators to stop planetary invasions in endlessly replayable seeded runs.

Build, customize, and unleash your ultimate space platform in NebulArena, a fast-paced, fully automated PvP arena where strategy, design, and destruction collide!

Clock in as a defense technician and fend off hordes of aliens with your armored train. Choose your carriages and build up your armored train to maximize defensive firepower in this bullet-heaven roguelike. Apply Today!

HUDDLE BATTLE is a bullet heaven where you raze swarms of enemies, harvest their souls, and use them to summon your huddle. Your characters may attack automatically, but you would be a fool to underestimate its challenge ⚔️

This "space station builder simulation roguelite" puts you in charge of a space station. Fight off enemy ships, fleets and rival stations to dominate your corner of space. Build and upgrade your station, hire and manage your crew. Survive as long as you can.

The fusion of deck-building roguelike and tower defense returns, bigger than ever! Build your deck with powerful new cards, unlock unique trinkets, and deploy enhanced towers to overcome relentless waves of enemies and new strategic challenges.

A Roguelike Tower Defense in space with missions to conquer. Can you hold against the spreading alien bosses? Build and upgrade towers against the corruption. Choose your technologies and warpspeed your way to victory.

Drop Order is a dark sci-fi tactical tower defense where every turret placement shapes both your firepower and the enemy's route. Build synergistic defenses, create deadly mazes, and survive alien hordes with cards and hands-on drone combat.

Towerbloom is a pathless roguelite tower defense with reactive gameplay. Employ countless outlandish strategies and supercharge your towers by hovering over them to vanquish enemies.

Star Armada is a spaceship auto-battler where you assemble and command a fleet of capital ships and fighter squadrons. Unlock powerful new ships and outfit them with a range of turrets, energy shields, and starfighter hangars. Engage in automated battles, carefully timing unique abilities to win.

Hold on in the Dungeons - Time to Hunt

Prismachines is a roguelike, stationary, horde-survival, autobattler. Draft a team of geometric shapes, equip them with game-breaking trigger items, and position them on the grid. Watch your automated engine of destruction unleash screen-clearing chain reactions to survive 20 escalating waves.

They came from the void. You are all that stands between them and our annihilation. Command and fight alongside an immense fleet, upgrade your ships and take back our homeworlds in this spacefaring roguelike RTS.

In Destruction Snake, you start with a basic mechanical snake and dive into swarms of enemies. Weave through the battlefield, shoot, burn, freeze, and destroy your way through the horde, collecting scattered resources to continuously strengthen your build.

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?

Build your city block by block and defeat waves of mechs in this tower defense roguelike! Combine powerful cannons with unique effects to survive the unforgiving wasteland and explore the underground to gather resources and find powerful relics.

Build by day, hold the line by night. A pixel-art roguelite where you raise a village, recruit heroes, and watch your formation hold or break against waves of monsters in real-time auto-combat. How long can you hold the gates?

Endless Coffee is out! Build your ship, survive 21 Days and break the Universe- Astro Prospector is an incremental bullet hell about mining coffee and fighting SpaceCorp. Collect resources, upgrade your ship and become unstoppable. Return AstroCoffee to humanity!

Build an army to fight absurdly large numbers of barbarians in this strategy roguelike, with an incremental twist.

Breach. Fight. Loot. Repeat... Breach Squad is a top-down sci-fi auto-combat roguelike RPG built around corridor breaches. Your squad fights on its own - you command, manage loot, and grow marines permanently… But if they die, they’re gone.

A minimalist sci-fi tower defense. Buy soldiers and upgrade them, defeat waves of enemies, hold your lines.

Siege of the Isletress is a tower defence survival game where you defend a lone fortress against hordes of enemies. Make meaningful decisions under pressure, exploit interconnected systems using 120+ distinct weapons and upgrades and uncover the secret history of the Isletress.

Dear candidate, we are pleased to invite you to take up the position of manager of Hell. You will punish sinners by using our deck-building computer system to construct hellish towers capable of keeping the endless hordes of the underworld in check. Best of luck!

An atmospheric pixel-art space roguelite. Build an unstoppable warship by combining weapon augments, modules, and drones. Discover points of interest, answer distress calls, or annihilate hostiles in auto-combat. Choose each jump carefully. Every path shapes your fate.

Command a fleet of customizable ships in this roguelite strategy autobattler. Liberate planets to unlock new ships and powerful upgrades. Engage in strategic battles, manage your fleet, and face escalating challenges as you fight to free the universe through increasingly difficult galaxies.

TurretFall is a fast-paced roguelite tower defense game. Build and manage your base, collect powerful upgrades, grow your economy, and survive relentless waves of enemies and challenging bosses.

Sci-fi rogue-like mining/tower defense game. Mine through a procedurally generated world to discover artifacts. Defend your spaceship from waves of enemies. Discover and spend resources to improve your mining and spaceships combat ability.

Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.

NERMIUS combines sci-fi roguelite bullet hell survival with an incremental clicker mode. Deploy as a Shell, a corporate combat unit, fight alien fauna, collect upgrades, grow stronger, and uncover what Saturn Acme Corp won't tell you.

Defend your planet from relentless stream of incoming asteroids in this fast-paced 2D tower defence game. Strategically place defensive buildings and upgrade your arsenal to protect your world from destruction!

Train and upgrade units to fight off invading armies. Place Tesla coils for defense and energy production. Hold control of the center to boost energy production. Expedite army upgrades before the enemy can take over. Defeat each set of opponent bases to advance your level.

Refence is a roguelite based idle defense game, where you can choose heroes and their traits, upgrade your castle, and manage resources to fend off enemies from the Demon Realm who are trying to attack your castle.