Top similar games like Planet Boom:

Co-op twin-stick base building survival game.

Mow down the alien hordes, scout for resources and survive. Dreadnought is a mix of Action Tower Defense Survival and Shoot 'Em Up Bullet Hell where you control the ships turrets & defend against waves of enemies. Choose your weapons, upgrade your ship & brace yourself, the horde is coming.

Build a battleship and fight through unforgiving space to save your people. Make strategic decisions, guide your people, meet allies and foes, and battle for your right for a home. The tale of a lone spaceship on a centuries-long mission from Voidship: The Long Journey greatly enhanced and updated!

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?

Roguelike bullet hell shooter, where you fend off waves of attacking monsters in a constantly transforming arena. You are rewarded with upgrades to your vulnerable spaceship if you survive long enough.

Brutal twin stick shooter with fun and clever enemies. Also has roguelite and Sci-Fi stuff.

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?

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.

Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.

36 Nights is a tower defense game with roguelike and bullet heaven elements. Buy turrets and upgrade your survivor to defend against waves of zombies. You'll need careful strategy and a little luck if you want to survive 36 nights...

Arcadium is a survival roguelite set in a dynamic, ever-changing universe. Journey across space, harvest planetary resources, and craft powerful builds to eradicate relentless waves of aliens. Each playthrough unveils a new and uncharted universe, ensuring endless challenges and discoveries.

Turn your armada into a rotating fortress, striking from every angle. A roguelite tower defense where spatial reads decide survival.

Spectral Realm is a top-down tower defense Rogue game, where players need to play the role of an astronaut who has just landed on a different planet to block a constant stream of attacking native creatures and continuously strengthen themselves with the gems contained within their bodies.

A rogue-like sci-fi Tower Defense strategy game with infinite replayability!

Fast-paced roguelike where you mine and explore procedurally-generated asteroids. Collect unique stackable upgrades to aid you in your quest for riches! (and freedom...)

Consume the civilization of the fools who unleashed you upon the universe. Become the Empire Ender.

Relaxing mining experience that merges combat elements and 1-bit pixel art aesthetics. Collect minerals from procedurally generated asteroids, improve your ship and survive The Anomaly, an unknown entity threatening The Galaxy. Can a simple miner stop The Anomaly and save everyone?

An action rogue-like about garden plants fighting back against the hungry pests that threaten their home. Spend the day blasting through hedges to find loot, but take care to make it back before dark! Gather synergistic items, confront formidable bosses, and play as several unique characters!

Rustwing is a twin stick shooter roguelike, set in the distant future. Navigate from star to star, battle the scattered factions of humanity, discover strange anomalies, customize your weaponry, acquire powerful upgrades and become a legendary pilot!

Tower defense reimagined! Dead Ground is a procedurally generated tower defense game with rogue-like elements. Each playthrough will offer randomly generated guns, skills and augments. You'll have to travel, collect scrap, water, manage your inventory and upgrade your base to survive!

Skycliffs is an action shooter roguelike dungeon crawler with fast-paced top-down platforming. Jump and dash across sky islands, fight loads of monsters, and get upgrades to survive the many dangers of your journey. Will you be strong enough to reach and defeat the keeper of this floating world?

SinSiege is a action rogue-like/tower defense hybrid set in Hell, where humanity's embassies is under siege. Play as legendary heroes, build divine defenses, and face off against waves of demons corrupted by the Seven Sins in a battle to protect mankind’s final haven in hell.

Summon hordes of minions to defend your realm against invading heroes in this fast-paced fantasy strategy game. Unlock permanent upgrades, new levels and more advanced minions to survive the ever-growing threat.

About：The solar system was invaded by aliens of unknown origin. The earth has fallen. As the commander of the surviving space fleet, return to the solar system from outer space and save the earth.

Enter the Blacksea Odyssey, a violent top-down rogue-lite space shoot ‘em up RPG brimming with colossal creatures and runic technologies. Explore dangerous, interstellar spacescapes as you hunt enormous space-behemoths with a harpoon and rune-infused spears.

Vampire Ascent is a casual real-time strategy survival game with rogue-lite elements where you play a vampire lord. Survive endless hordes of enemies and defend your castle by building your own vampire kingdom. Choose from a variety of traits and upgrades to create unique builds.

Defend the evacuation of Terra on the losing side of an alien invasion. This experimental action strategy game breaks out of genre norms to provide fresh mechanics to strategic gaming.

A high-tempo shooting game with simple controls! Upgrade your character with cards and defend the gates from your enemies.

Split Drive is a roguelite arena shooter where you have to find your way home through a hostile galaxy, numerous locations and a variety of bosses, all generated procedurally.

Destroy enemy ships, blast away asteroids and unlock new weapons / ship abilities in this endless arcade roguelite. Earn resources through each of the 7 game modes to upgrade your weapons to outlast them all.

Progressively insane side scrolling roguelike shooter adventure that gets crazier and crazier the more the player plays.

Demolish streams of antroids and advance the progress of science in the process! A pixel futurism tower defense game with rogue-lite elements, where you build turret robots—“Turbotz”—to annihilate research fodder. Upgrade both sides and push explosive research to its limits!

AGIS - A Game In Space is a top-down twin-stick-shooter.

An arcade game where the player controls a spaceship and defends against waves of enemy invaders. The goal is to survive as long as possible, achieve the highest score, and progress through increasingly difficult levels.

Battle massive hordes of alien monsters to secure humanity's presence on planet Gore. Upgrade your base, hire troops, and install turrets to fight back the ever growing waves of aliens.