Top similar games like Galaxy Pirates:

An idle defense game at the bottom of your screen. Build your squad, upgrade your base, and hold the line against relentless alien waves while you work or browse.

Defend your moon from endless alien waves! Collect gold, upgrade defenses, unlock new weapons and planets, and build the perfect defense while you do other things.

Defend your station with a click and survive as long as you can. Destroy the enemies, mine the deposit, then trade your ore for permanent upgrades. Every world has its own ore, its own enemies and its own rules.

Attack of the Zektoids! blends active ability timing with deep incremental progression. Buy turrets based on elements and elemental synergies. Choose upgrade paths for each turret. Defeat strong Zektoids to receive powerful gear. Prestige to unlock permanent upgrades.

StarShipdle is an indie game that runs on your monitor while you do other stuff. You’ll be overseeing a spaceship as it explores the universe, managing upgrades, tracking progress, and following the story.

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!

Build one tower. Hold endless waves. Spend what each wave drops on damage, crit and six weapon mounts firing at once — then bank the run into a 453-node passive tree that carries into the next. A premium incremental tower defence: no ads, no timers, no energy bars.

An idle auto-battler that sits in the corner of your screen while you do other things.

A short incremental game about a vampire hunting for blood. Every kill buys you more night; every night buys permanent power. You never die, the sun just comes up.

Defend your starship in this endless sci-fi tower defense game! Form your ultimate squad of 2D heroes, permanently upgrade your spaceship's hull and defenses, and unleash powerful ultimate abilities to survive relentless waves of cosmic alien invaders in the vast void.

Conquer your enemies in space, strengthen your ship with stats, and progress even in the background. A relaxing idle experience awaits you!

Help the Commander rebuild his forces and escape the planet. Take command of a squad of robots, venture into the depths, develop your base, upgrade your units, automate their skills, and harness arcane energy to defeat increasingly powerful enemies.

Minion-based tower defense crossed with an incremental, topped with RPG systems and raid-style boss fights. Raise a legion of 29 shadow types, claim the shadows of 20 fallen bosses, and reset for permanent power. Idle when you want, hands-on when it counts.

An idle incremental adventure in space! Mine asteroids while fighting off enemy AI drones. Build your own AI drones, mining lasers, helper drones and more. Collect hundreds of rewards and unlock a variety of features that will help your ultimate goal: making numbers go up (or sometimes down).

A grid-based tower defense. Upgrade, specialize, and outfit your bases with advanced augmentations. Use weapons and research to survive the endless onslaught of enemies as they become stronger and more advanced with each level.

A pixel idle tower defense where your kingdom fights on its own. Workers gather, your army auto-battles endless waves, spells self-cast — you aim the bow, chain combos and choose what to upgrade. Bosses, titans, prestige, 100+ achievements. The night is endless. The bow is yours.

Fight off a galactic threat in this idle clicker game. Battle waves of enemy ships, progress actively or passively, and save humanity. With over 200 high-quality ship models and background mode, watch your fleet soar across your desktop while you work!

A game where you will command 4 heroes (TD) in the defense of Earth from an army of AIs. Create cannons, place them in strategic locations, and level up. Each stage increases in difficulty progressively. You will also command the 4 heroes' ships and can even count on the help of a super robot.

A short relaxing incremental game disguised as a tower defense, but enemies can’t reach your walls. Thanks to lava.

Construct colossal megastructures in this industrial, retro-futuristic idle game. Manage grid-based modules, explore exotic star systems, and unlock the secrets of reality through exploitation and optimization.

A short relaxing incremental auto-battler where you grow an unstoppable war machine and grind your way forward through enemy territory. No stress, no micromanagement — just growth, upgrades, and glorious mass battles.

Build the ultimate hero formation on a tactical grid, then watch your team crush endless waves. Level heroes, collect mounts, farm pets, dig into mines, and prestige across 17+ worlds, all while you're away. A deeply layered idle RPG with real strategic depth.

An asteroid mining based idle game. Travel in space and discover.

A short incremental game about building a career by destroying planets, meeting corporate goals, and investing in profitable — and maybe not so ethical — ventures.

Cultivation Tower is a 2D xianxia idle incremental auto-battler. Summon projections and cultivation allies, invest Spirit Stones in upgrades and Methods, collect Treasures that persist through rebirth, and climb toward higher realms and tougher floors.

Idle Protocol is a minimalist sci-fi tower defense and incremental game. Manage a central CPU core, equip exactly 2 Nodes, and defend against geometric anomalies. Perform a System Reboot to earn Cycles and unlock permanent modules in the BIOS!

Idle zombie defense where you grow your colony, earn passive income, and survive endless waves with automated combat and strategic upgrades.

Command a hex arena where your weapons fire themselves, but the build is yours. Mark targets, drop abilities, vent the heat. Between rounds, crack capsules, merge mods and rewire a 13-socket grid. Six zones, one long run, and a machine that slowly starts playing itself.

A thrilling idle tower defense game with automated battles and endless growth! Build your defenses, deploy heroes, and watch your fortress evolve from a humble outpost into an unstoppable stronghold—even while you’re away. P.S. Supports a boss key for instant hiding whenever needed.

An incremental action game set across the seas. Lead a party of 5 Heroes, upgrade your heroes and mounts, unlock 16 powerful skills, and build your skill tree as you fight through 35 levels of sea monsters. Defeat giant bosses and tame them as mounts for your next adven

Forge insanely rare turrets in an incremental idle tower defense. Hunt impossible loot, unlock powerful relics, expand your skill tree, complete quests, and discover game-breaking synergies as you chase the rarest drops imaginable.

Clankers! is a short incremental robot killing game. Kill Clankers, gather money and spend it on weapons and upgrades to stop Clankers from stealing our jobs!

A minimalist hero‑driven incremental tower defense game. You are an Einherjar guarding the Godcore crystal as Helheim’s horde rises to break it and reach Midgard.

Raise and equip dragons, expand your tower, manage resources, and defend your kingdom across five enemy realms in this colorful 2D idle tower-defense game.