Top similar games like Planet Nine:

Cyber Heart is a single-player, story-driven mech shooter where you, a commander, ride your customizable mech through an open world to fight against enemy AI machines.

Become a pilot in the world of Mobile Suit Gundam SEED, for the first time available with English localization! Engage in thrilling, action-packed Gundam battles, complete missions, and tune up your newly acquired Mobile Suits!

Perhaps in another timeline, he has already been defeated. But here, everything can be rewritten. The legendary strongest bounty hunter!

Monkey Barrels is an action-packed twin-stick shooter in which you blast waves of weaponized electronic devices with tons of crazy unlockable weapons. You can experiment endlessly with different combinations and find the loadout that best suits your playing style.

Blackwind is a top-down sci-fi action game that puts you in the shoes of a teenager trapped inside a prototype battle armor suit during an alien invasion. Face off against enemies, cut through their ranks, and fight back to stop a planetary invasion.

A【Pixel style, rouge、type horizontal、 shooting、 defense 】 game

Explore a vibrant world in this action adventure RPG where you get embroiled in a war between the 7 major races of the rainbow world.

Fred Johnson's: Mech Simulator is a third-person mech shooter and exploration game. Stranded on an alien world, pilot a powerful mech, battle enemies, solve puzzles, and uncover secrets. Scavenge resources and fight to repair your ship and escape.

Darkship Echoes is a tense, atmospheric sci-fi top-down shooter where you pilot a remote drone through a dark, derelict space station, using radar to scan for threats, fight rogue machines, and scavenge supplies to survive.

Pilot and customise your mech for the mercenary group Laplace as you take on contracts from different factions in this 2D mecha Action-RPG.

A game about exploring space in search of hospitable planets for colonization. Casual gameplay and short rounds make it a great option for killing a few minutes.

Trade to make your fortune in this lo-fi, laid back space adventure, where you'll get help from anthropomorphic animals, gear up your ship, and search for the mythical key to immortality hidden in the depths of space.

Wukong 2088 is a survival rogue-like game where you play as the secret weapon of Sun Wukong in futuristic Journey to the West. You will resist the invasion of the Cyber TianGong, face endless waves of enemies and bosses, defeat them, and strengthen yourself to fight against the powerful Mega-Corp.

BOSSLEFT is an open-world voxel adventure that embraces the charm of classic gaming. Collect powerful weapons, battle alien invaders, and take on unique boss battles.

Control a robot with the mouse and challenge yourself to find the way out of a dark, twisting cave!

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.

A pixel-art action RPG and independent spiritual successor inspired by Metal Max on the Famicom. Pilot a transforming ferry-mech, explore Mars and nine other worlds, customize weapons and skills, and uncover the mystery of pilot 404.

This is a rogue-like top-down shooter where you control a spaceship that is sent out to explore the caves on the Moon. Once you enter the caves, you find out that there are enemies. It is up to you to survive against them while also trying to find the path down to the next level of the caves.

Pilot your fully customizable Arsenal mech and join your fellow mercenaries in defending humanity from the corrupted machines and gigantic robots in this post-apocalyptic action game!

An ARPG pixel role-playing game featuring 2 world boss challenges, 4 dark knight challenges, and arena challenges. an in-game elemental counter system where earth, water, fire, and wind restrain one another, a weapon and item outfit change system, and skill systems of different attributes

Tense top-down extraction shooter. Build your gear, loot, fight until your last HP & discover mystery of a town devastated by a war that never was. Your chance for survival is low, but never zero...

The Forge is a mech-combat sci-fi action game. Step into the cockpit as mercenary pilot Ivan and fight alongside a mech with a soul—Machine Spirit. Dormant Dragon holds a strange and rare mineral. When wolves come for the ore, you and your mech must choose, and planet's fate hangs in the balance.

A space action-adventure unlike any other: navigate your spacecraft through a galactic-scale mystery. Make sure to loot, craft and upgrade your space fleet. Play the story campaign or test your skills in vicious arena modes against AI opponents.

Exogear is a high-speed 3D action-platformer inspired by classic games and animes.

Explore the mysterious and beautiful planet Gomi on foot or with your spaceship in this action packed platformer and space shooter hybrid. Your mission is simple, retrieve A.N.N.E and escape.

Welcome to Keplerth! Try to survive on a hostile alien planet in this 2D sandbox RPG, where you can choose to live alone or fight side by side with your friends in the online multiplayer mode. Survive, build, farm, fight, and explore your way to victory in this open-world adventure!

You play as a new arrival to a foggy and mysterious town. You find yourself waking up in the bodies of the town's inhabitants at pivotal moments of their lives. Make tough choices as you discover the truth about this town called Greyfox.

AREA WARS™ is a fast-paced 2D omnidirectional shooter where you battle enemies from every direction in a constantly changing enclosed area. Defeated enemies trigger chain explosions that engulf nearby foes and boost your score multiplier. Built for short, repeatable runs with score-focused gameplay.

Livelock is a co-operative top-down shooter where you play solo or with up to two allies to break the cycle of infinite war between machines. As one of the remaining Capital Intellects, your role is to unlock Eden and revive humanity.

A huge hand-crafted world packed with 13 unique bosses, a gripping story, and tons of enemies, Spaceport Hope is the ultimate test of gaming prowess.

Cyberhunt is a retro procedurally generated twin stick shooter, that takes you back to the sweet to the sweet arcade machines era!

Shot down and stranded, Skywalker and his drone Wolly must fight to survive on a hostile alien world. Scavenge, craft, and defend against relentless robotic sentinels while uncovering the secrets of the Astra Portal and the mysterious force that brought them down.

This is a single-player action game playable in both first-person and third-person perspectives. Players can choose to pilot a combat mech armed with guns and blades, slashing through disgusting cockroaches in post-apocalyptic ruins to eliminate regional threats.

Break Free is a fast paced third person sci fi shooter game. The creatures that live among us have made the Earth uninhabitable for human life. You are mankind's best hope for survival. Make no mistake, war is coming and you shall die today, then you shall live to fight again tomorrow.