Top similar games like Rogue Protocol:

Heat Signature is a game from the developers of Gunpoint where you break into spaceships, make terrible mistakes, and think of clever ways out of them. You take a mission, fly to the target ship, sneak inside, and make clever use of your gadgets to distract, ambush and take out the crew.

In Deadline: Aphelion, you play as a mercenary tasked with defending the research facility from the hordes of alien spiders that have been drawn to it. 

Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *

Can you create the raddest spaceship? Captain Forever Remix is the spaceship builder roguelike. Voyage across the Solar System and blast apart randomly-generated enemies for spare parts. This is an officially-licensed re-imagining of the indie classic Captain Forever.

In Astrum Vanguard, a 2D horde-survival with bullet hell components, you pilot and upgrade your spaceship to defeat countless alien creatures. Survive the endless onslaught in the cosmic battlefield!

Echoes of Elpis is a twin-stick shooter sci-fi roguelite. Upgrade weapons, discover new tech, and uncover a secret past as you battle through Elpis on an epic treasure hunt.

Pilot your starcraft in this fast-paced, action-roguelike auto-shooter! Command unique ships, augment salvaged weaponry with over 115 augments, and make challenging decisions as you navigate a perilous, ever-changing galaxy and carve your legacy amongst the stars!

---Red---Tether--> is an action-packed “combat-puzzle” roguelite. You will tear apart massive space fleets, using nothing but your advanced tether harpoons. Pull and crash ships into another, rip their components off, then grapple-swing your way out of danger.

EVERSPACE™ combines fast-paced combat with roguelike elements, great visuals and a captivating story. It takes you on a challenging journey through an ever-changing, beautifully crafted universe full of surprises. Shoot, craft and loot your way to victory while the odds are stacked against you.

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.

BAFTA award winning fleet-based RTS meets rogue-lite. In Distant Star: Revenant Fleet, build your fleet of up to 5 ships from a choice of 8 classes and traverse a randomly generated galaxy to defeat the Erebus Platform. NOW AVAILABLE ON MAC AND LINUX

Welcome to Solitary Sentinel, a captivating modern reimagination of Space Invaders and Missile Command, where you must defend against constantly evolving enemies by upgrading a single Sentinel. Enjoy simple controls, and deep strategic gameplay as you fend off the relentless onslaught!

Can you survive the Empire's onslaught? Avoid the attacking enemies and upgrade your ship to last long enough to escape in this space survivorslike.

SURVIVE the swarm in this rogue-lite + survivors + asteroids mashup! Exterminate as many alien drones as you can. Upgrade your ship from the crafted deck of equipment and power-ups. You are the Last ship against the Endless... Will your choices be enough to overcome the thousands hunting you?

Saucers is a rogue-lite top-down twin-stick arena style shooter featuring extensive weaponry and upgrade paths so that every run is unique. The further you get, the more weaponry you can stack up to devastating effect. THIS GAME REQUIRES A TWIN STICK GAME CONTROLLER TO PLAY.

Pillage and plunder across the galaxy as part of a crew of Space Vikings in this sci-fi roguelite bullet hell dungeon crawler. Find exotic weapons, upgrade them with powerful augments, explore mysterious alien planets, and unleash viking vengeance on their inhabitants.

Broadside Renegades combines auto-firing weapons with manual ship abilities in a rogue-like space pirate adventure. Choose your captain and upgrade your ship to steal the space kings booty. Warp ahead to stay alive, and mind your bearing.

Starwave Defender is an intense twin-stick shooter based around wave survival. Dodge swarms of enemies while exploring procedurally generated levels and collecting resources to upgrade your ship. You have a limited number of ships; make your time count, Defender.

Deploy your turrets and defend against an ever-growing mechanical horde! Upgrade your turrets separately in unique ways, use unique character abilities, and create powerful synergies.

Cosmic Paradox: Noire is a 2D top-down shoot ‘em up adventure set in a world of two overlapping dimensions. Witness the battle between the Vex Accord and the Oronix Empire, increase your odds of survival with the right upgrades and choose a ship that is best suited to your playstyle.

B.O.T.S. and the Robofriends is a sci-fi top-down shooter rouge-lite with multiple games modes. Play alone or with friends in 4-player co-op choosing from 4 unique robot characters with different attributes and attacks. Defend your home, rescue the Robofriends, and find MOTHER!

Defend Modulea! Dodge bullet hell, combine modules, and fight off waves of enemies with your custom-built space battleship in this roguelike action shooter!

Survive in space in this action roguelike with RPG elements where you use your strategy to combine design, weapons and passive skills, shaping your ship in your style, facing increasingly powerful enemies.

A 3D Sci-Fi space shooter game where you fight against big flagships and bases to unlock the secrets of the world.

Fire up your blaster cannons and take on waves of enemies in this retro shoot'em up with procedural levels. Come back stronger with each attempt and beat the high score!

Repel extraterrestrial entities!

Sixty basic cores, hundreds of base station equipment, and thousands of chips, you can freely cooperate and shoot through the dual-angle joystick operation in a survival Roguelike game! Explore the sci-fi space and build your strongest battleship!

Astro Miners is a thrilling space action game: blast meteors to harvest resources, battle rival factions in their airspace, and survive anomalies and black holes. Exchange fragments for Credits to upgrade dual-weapon ships and unlock powerful modules. Purchase now and conquer the void!

Save the galaxy in this unique space shooter! Based on the legendary Google Play title, Super Space Slayer 2 features completely re-designed mouse, keyboard and gamepad controls that make it even better than the original.

ROGUE SHIFT is a high-intensity top-down shooter, set on a harsh planet that will test your will to survive. To stay alive, you will pit yourself against hordes of relentless enemies in an unforgiving, hostile environment.

Bullet hell meets auto-shooter in this roguelike color-matcher where RGB itself is your weapon! The Maiden of Light has been captured by the forces of entropy. Six challenging bosses stand in your way and only you can save her!

lone.AI is a space RPG roguelite. With challenging, relentless gameplay, each run has the potential to boost your ship's power, speed, and more. As a lone AI, fight your way through the solar system and uncover the secret behind the ZOSMA, an alien race that holds power over the system.

Join Captain Rijk as he attempts to escape from the clutches of one of the most villainous species in the galaxy. Help to uncover the horrors that are being carried out on the fringes of the civilised galaxy and become the divine being prophesised to inspire an uprising and destroy The Domain.

Echo Punk is a roguelite top-down looter shooter with fast-paced combat, tactical upgrades, and endless replayability. Blast through waves of enemies, collect resources, and upgrade your build -- or die trying.

Last Encounter is a twin-stick action roguelite in deep space following a group of heroes trying to prevent the unavoidable by cloning their ships and designing their weapons with swappable components.