Top similar games like External-Dimension: Mainframe:

Cybarian The Time Travelling Warrior is a classically inspired arcade action game, with a mixture of modern and retro gaming tropes.

Discover a mysterious, interconnected alien world in this sci-fi action-exploration game. Earn game-changing equipment through skillful combat and solving puzzles. Customize your gear, pilot insane vehicles, and repair your powerful home ship for the ultimate advantage.

Embark on a journey to kill the man who murdered your adoptive father. Fight and kill everyone who stands in your way, from killing basic foot soldiers, to fun and unique bosses. Get stronger with stat and gameplay upgrades.

A little but very fun and challenging platform game.

MindSeize is a 2D Metroidvania game set in a Sci-Fi-universe. Transfer your mind to a robot and rescue your beloved one!

Play as Shiranui Flare in this retro action platformer, wielding her dual pistols, as you explore the world on a quest to save your friends!

Xilosaga is an action and platform game where you play as Tatuapu, an Indian from a local tribe, who ventures out with the aim of purging a plague within the carrancas, which began to attract evil spirits and dominated the inhabitants of northeastern Brazil.

Scale Death Trap Mountain to save your dog, Gil, from the dragon Xelthorak. A tough, rewarding platformer where skill, patience, and persistence are the keys to survival.

Jett Rider is an arcade shooter packed with action, exploration, RPG elements, tons of humor and awesome bosses. Explore, fight, gain experience, purchase weapons in this exciting adventure.

Jet Gunner is reloaded, remade and refueled for a new explosive 8-bit adventure. Relive the past glory days where VHS was king, phones didn't have screens and you'd have to blow into a cartridge to get your gaming fix.

Join Nerdstan In His Ultimate Adventures to save the NerdDom. In this Beautiful 2D Adventure You Will Defeat Enemies, Collect Coins, Navigate Platforms and Face Powerful Bosses.

Fireball Wizard is a lovingly crafted retro arcade platformer. Blast your way through 4 worlds and 40+ levels to defeat the big bosses and find all the secrets. Unlock spells and costumes as you go to help you face the challenges ahead.

A frantic and challenging boss rush with options to customize your play style as you progress. Defeat all enemies in your path with attacks, specials, parries, and unique abilities.

Heart of Smoke is a platformer game with 90's feel. Players must clear the levels using two characters: the smoke wizard Eneen can fly by creating a bird and attack with bats. The ninja girl Rae is faster and can attack with her katana.

Hero and A Wicked Man is a game about Hero, who goes on an adventure to stop the evil Dr. Wicked. The core mechanics are shooting and platforming. Adventuring through each level and collecting more ammo gives the player an incentive to explore.

Rize of the Summonds is a metroidvania game, in which player has the power to transform into legendary Summons including the fearless Dragon, stealthy Wraith, heavy Orc and agile Cat; each equipped with unique abilities in order to reach new areas, defeat enemies, and avoid traps.

Explore Eonheart, an enigmatic machine complex in this classic-style 2D Puzzle Platformer where you can create platforms by yourself and manipulate them to traverse the complex, brave dangers, surpass challenges, solve mechanisms, and discover long-lost secrets!

A precision platformer where you control a frog using dash chips to overcome traps, avoid electrified enemies, and conquer challenges in chaotic digital environments.

Use a Spear Guardian to rescue your missing tribe members! A mysterious enemy has turned the once peaceful island into chaos. With help from your Companion and your Tribe’s wisdom, you must uncover secrets, gain new abilities, and restore peace to the island.

Take control of Mace in this local co-op side scrolling platform shooter as you travel from assignment to assignment taking on enemy bots and dangerous bosses on different planets.

Demon Mage is an action-platformer shooter. Levitate between platforms to strike down enemy Mages with a variety of upgradeable spells. Explore the lairs of each guild with secrets to find in every level.

A monochrome action platformer where the palette changes the environment around you

PROJECT XZ is a high-octane fusion of platforming, action, and tower defense strategy. Shoot, brawl, and upgrade your arsenal of skills to tear through anything in your way and decide the fate of the future.

The ultimate couch fragger gibfest! Armed with a powerful shotgun, bullet deflecting shield and power-up tarot cards, 2 to 4 local players will battle it out to collect each others souls in 9 different competitive game modes across 4 realms & 40 arenas. This is frantic local multiplayer action at its bloodiest!

Hyperactive 2D action platformer with wicked fast attacks, omnidirectional dashing, and time-freezing! Play well enough to transform and unleash 100% power!

The other guardian spirits have gone missing, and it's your responsibility as Keali, self proclaimed master of chores and errands, to fix whatever has gone wrong. Use your tether and other movement abilities to traverse past the creeping vines, fly past dangers and master your skills.

Pitted against relentless robotic foes and navigating through dense and perilous jungles, scorching lava fields, and treacherous swamps, Vivaldia once again seems faced with an impossible challenge. With the fate of the land in her hands – will Vivaldia rise to the occasion?

A modern take on the 16-bit era, A Valley Without Wind 2 blends a variety of mechanics across multiple genres, seamlessly bringing together the best qualities of old-school platform-shooters and turn-based strategy games.

Ascend through a futuristic tower in this fast-paced action platformer. Use your Yokai abilities to move swiftly in the air and pierce through your enemies to defeat them. You are the last Yokai capable of saving your people and liberating your homeland from the Selvo robot control.

In a ruined world, overrun by evil robots, a disabled cyborg named Blaze rests. Send a spark of energy from your world to Blaze’s to wake him up. Help Blaze take revenge against the robots in this fast paced 2D platformer where you workout to level up.

DARK PROTOCOL is a timed 2D sci-fi platformer set aboard a rogue AI-controlled lunar weapons station. Explore interconnected sectors, unlock gadgets, solve environmental puzzles, and engage in light combat as you race to disable the planetary laser before Earth is destroyed. Multiple endings.

A hand-drawn 2D metroidvania in a post-apocalyptic world. Forge your destiny in a non-linear story with multiple endings. Explore diverse biomes, conquer 20+ unique bosses, and master a magical Gauntlet with ever-evolving powers.

Stardrytch is a challenging action-platformer set in a lost world where sci-fi and fantasy collide. Embark on a dangerous journey, discover a forgotten land, unlock mighty powers and battle terrifying monsters to find a way home.

Drill Hero Legend is a 2D action platformer with rogue-lite elements, where your drill head is your greatest weapon! Drill, shoot and slide at high speeds as you face intense challenges! Choose your route, overcome obstacles with unique advantages and disadvantages and upgrade your arsenal!

Classic run n' gun gameplay mixed with fast paced melee combat! Rack up your combo to unleash even more powerful attacks!