Top similar games like GEM:

TRAXION is a space-themed cave flyer featuring beautiful pixel art, great music, and tons of meticulously crafted physics puzzles.

AsTroops is a roguelike card-based space combat game. Build your fleet, choose cards with machine gun, rocket, and electric weapons, and fight real-time battles to break the alien blockade.

The Happies: Amber Falcon is a small casual game, where you control a hot air balloon and explore different mission environments. In a disaster of cosmic proportions, the Happies are forced to leave their planet in a hurry on evacuation ships. One of these ships is the Amber Falcon.

A fast-paced 2D action adventure set in the mysterious world of Drury. Run, jump, and soar through procedurally generated levels as you chase, or are chased by your own shadow. Collect coins, grow your collection, and race to the top of the leaderboard!

Play as "Sauce," the Grey Alien, on a critical mission to hide alien evidence from humanity. Abduct, rescue, mine, and unravel Earth's mysteries. Battle formidable foes and prove your skills on the intergalactic leaderboard. Prevent disclosure, or the truth is out!

DICED Pilot is a 2D action game containing old-school platform-based movement/jump timing challenges, physics-based surroundings, jetpacks, and weapons that can destroy everything in sight!

Join the fight against alien invaders in Pink Devil. Pilot an upgradable fighter jet through diverse environments, from oceans to deserts. Face unique bosses with distinct tactics and use weapons like machine guns, lasers, and rockets. Become the unstoppable Pink Devil and save the planet.

Glide through surreal worlds with precision, patience, and perfect timing. A cute, chill sidescroller with no jumping. Calm vibes, deep challenge!

Soar sky-high in Raiden III x MIKADO MANIAX, an electrifying entry in the classic arcade shoot-‘em-up series! Customize your music, wallpapers, game mode, and more before launching into high-octane aerial action!

The alien lifeforms welcome you to The Extraterrestrial Museum of Earth Exploration! Get lost in the exhibits, meet new friends and take up a job at the museum to help these aliens learn about Earth from a real-life Earthling!

Drone crash course - Being a pilot of a controlled drone is not easy. Having decided to master this profession, you sign up for training and attend classes for a whole year .. and now the day of the final exam has come!

While your ship battles enemies on autopilot, your mission is to keep upgrading it with strategic cards. In this experience that values brains over reflexes, the right upgrades are the key to victory!

With limited fuel and several dangers lurking, use your skills to rescue astronauts trapped in various unique places on the strange planet. It won't be an easy rescue.

Pew Pew Pew, KaBOOM! is a challenging old school arcade game filled with action! Unlock new costumes and enjoy the awesome Chiptune OST as you reach new highscores!

Survive 10 enemy stages! Shoot 'Em Up style, spaceship game, in pixel art and 8-bit retro music! Evolve your shot to the maximum level, use the energy bar for upgrades, and special abilities! Advance each stage by defeating Bosses and enemies to collect new skills, transformations and extra lives!

Buckle up and blast off with Raiden IV x MIKADO remix! This classic arcade shoot ‘em up comes fully equipped with new music, battle modes, vertical screen play, and more!

Liberty Fighters is a fast-paced top-down extraction shooter with mixed RPG elements. Explore the vast open world space, loot gear or materials and sell it for the best price. Upgrade ships or buy new ones to fight in action tense space combat missions.

Help explorer Larry on an adventure full of challenges and dangerous creatures. - 1 Player - A giant map to navigate - 4 different levels to explore - A 16-bit style adventure - Map Editor. Export, Import and share maps.

An infectious retro hardware classic from 2006 has been revived. Only you can save the world from the deadly virus known as Scurge.

Explore space and race against the clock in this retro styled adventure game.

Galactic Explorers is a top-down 2D retro space shooter inspired by early games such as Galaxian, and Asteroids.

Hoboman is a 2D NES-style platformer with a unique Sci-fi story and wild characters. Play as Pluto the Voltran as you hop ships from planet to planet and collect geodes to get your life back!

Defender's Squad is a sci-fi vertical scrolling shooter 2D that combines 7 different levels. Play Solo and pick one of the 3 ships to kill enemies and save the earth from aliens.

A wormhole has opened up letting aliens terrorize your city. Pilot your spacecraft and destroy the aliens using flamethrowers, missiles, gatling guns, shockwaves, and more!

A light-hearted bullet-hell adventure where friendship means overcoming the language barrier. Play as SAAL, a lonely exploration robot, scanning planets, dodging “misunderstanding” projectiles, and collecting “understanding” to befriend eccentric aliens.

An indie story-driven space shooter with intense battles, escalating enemy waves, and massive boss fights. Choose and upgrade ships, unlock powerful weapons, and protect your allies. Upgrade your base and construct a battleship to take on even stronger enemies. All set to a rock & synth soundtrack.

Alpha Force Zero is an intense top-down bullet-hell adventure that requires skill and planning. Utilize multiple weapon systems including an Auto-Turret with adjustable firing modes and unlock upgrades that you can equip in your ship to give you the upper hand. Dodge, fight, survive!

Top down 2D sci-fi space themed roguelike bullet hell shooter with different player classes and abilities to play with.

Travel through an unknown alien world, collecting new weapons to fight alien monsters and upgrading the Time Tank to withstand hordes of unknown monsters.

While exploring deep space, you have come across our solar system. It is up to you to crush each layer of every planet in our solar system in this beautiful block breaker. See if you can complete each set of levels corresponding to each planet in order to unlock the next.

Mystictronaut is traveling alone in search all lost constellations. His costume, boots, gun and grenade give him special abilities so he is up to the task. Hunting aliens and robots, searching for the path through this universe of planets and stars.

Classic platform game, retro style. Help Lily or Sury to rescue your friends from the Evil Wuning, through 8 worlds and approximately 32 levels.

Feel good traversal sci-fi explorative side scrolling ability upgrade shooter with no map system, large areas and action puzzle bosses.

Space Survival is the next great SIMPLE 2D casual space action shooter where you have to defend against wave of enemies, have fast reflexes and strong will to win. It is great way to relax, but also a great challenge. How long can you stay focused?

You will travel through countless planets and encounter strange vegetation and life that may not like your presence. Run away from them and survive this unknown journey.

One More Round is a lo-fi sci-fi time-loop adventure where you play as an alcoholic engineer aboard a space station orbiting a black hole. Relive your last moments, uncover a mystery and confront hard choices in a story of redemption and sacrifice.