Top similar games like All Systems Operational:

Escape a chaotic alien planet by fighting through hordes of frenzied monsters – with your friends, or on your own. Combine loot in surprising ways and master each character until you become the havoc you feared upon your first crash landing.

AFTERBLAST is a challenging FPS roguelite. Play SOLO or in CO-OP. Get stronger each run. Obtain powerful abilities, weapons and find a way to save your planet. Stand up against the Gods and defeat hordes of monsters!

Team up with 1–4 friends and dive into wild co-op battles! Smash waves of goofy enemies, grab ridiculous loot, and grow insanely powerful together. Every run’s a new kind of chaos!

Fight on hostile planets together with your friends. Get as far as possible while under attack of enemy waves and bosses. Increase your chance to survive by collecting bonuses. Every attack will make you stronger. But don't forget you have just one chance.

Use guns to combine elements in surprising ways to unleash powerful reactions. Loot artifacts and guns to build the most unique and godlike builds. Go solo or with your friends up to 4 players.

Cosmic Corps is an action roguelike with bullet hell elements. Blast, slash, and laser hostile lifeforms as you dimension hop to freedom across a series of planets. Loot everything you can to arm yourself against the entity lurking deep within the Rift.

The Ultimate Vault Hunter’s Upgrade lets you get the most out of the Borderlands 2 experience.

Storms are coming, and there are rules you must follow. RIFTSTORM is co-op looter-shooter set in a world of myth and secret societies where you can play solo or co-op in a party of three.

As a Runner, master your environment and claw your way through the endless stream of corrupted monsters chasing you. Gear yourself up on the drops of your adversaries, recycle or upgrade it, and complete objective to move forward. But beware of the Storm !

Elite Rogue – BOUNTIES. CHAOS. BETRAYAL. Every contract is a high-stakes gamble in this unpredictable roguelike! Hunt alone or with up to 10 players, earn Darkmatter to unlock game-breaking powers, manipulate reality, and outsmart rivals. Adapt or be erased. WISHLIST NOW!

Suit up, grab your guns, and embark on a cosmic heist in this fast-paced bullet-hell roguelite. Solo or with friends, your goal is to overcome enemy packed dungeons and steal the Solar Core. Raid, loot, unlock powerful skills, create unstoppable builds and prepare to die.

Star Vortex is a fast paced Action-RPG inspired by classics of the genre. Design your ship, fight your way through hostile alien sectors, upgrade as you salvage rare weapons and experiment with different builds until nothing can stand against you.

A very unique group of farm animals that tired of the abuse of the big chains of fast food decide to oppose them; Armed and trained to fight, our heroes must make their way through every restaurant and fight to stop their evil machinations... or be cooked in the attempt.

Mobmania is a four (4) player co-op real-time bullet-hell action rogue-like where you kill enemies, buy items after leveling up, and survive long enough against thousands of monsters and bosses until the final fight against the Witch.

Get ready for the mind blowing insanity! Play as one of four trigger-happy mercenaries and take out everything that stands in your way! With its addictive action, frantic first-person shooter combat, massive arsenal of weaponry, RPG elements and four-player co-op, Borderlands is a breakthrough experience that challenges all the...

Dive into the cybermyth roguelike chaos of Neon Abyss 2! Now featuring up to 4-player online co-op, more combat styles, and unlimited item synergies, every run delivers a dramatic, action-packed experience you won't forget.

Nova Drift distills the mechanical depth and strategy of an ARPG into classic arcade space combat. Control an endlessly evolving bio-mechanical ship, face legions of strange and deadly foes, and ride the wake of a dying star across the void.

Third-person bullet heaven meets explosive co-op action! Swing, dash, and blast through monster swarms while combining upgrades and discovering rare evolutions to create game-breaking builds of destruction.

A 4-Player co-op shooter roguelite! Get together with up to 4 friends, defeat hordes of monsters, and upgrade your powers to survive in an anime-style wasteland.

Descend into Planet Paimo in MineGeon: Renegades, a chaotic roguelite you can play solo or in co-op. Choose your renegade, delve into the minegeons, and battle unique enemies across diverse biomes. Fight, gather, improve, and die to uncover the secrets of Paimo and New Olympia.

Carefully designed, beautifully remastered, and loaded with new ways to play—Risk of Rain is back and better than ever! Dive into the iconic roguelike full of unique loot combinations, enhanced with new Survivors, overhauled multiplayer, fan favorite content from Risk of Rain 2, and more!

Roboquest is a fast FPS Roguelite in a scorched futureworld. You're a rebooted Guardian, ready to kick some metal ass! Fight with your buddy or by yourself and annihilate hordes of deadly bots in ever-changing environments.

Gunfire Reborn is a level-based adventure game featuring FPS, Roguelite and RPG. Players can control heroes with various abilities to experience diverse Build gameplay, use various weapons to explore procedurally-generated levels. You can play the game alone, or join 4-player coop.

Destroy hordes of enemies and save Sivinina in this RPG-Space Shooter hybrid!

Space God is a 'hyper retro neon' style top-down shooting game. Play in single player, online co-op mode, or online multiplayer. Don't stop, keep moving! and you might survive... maybe.

Enter the Gungeon is a bullet hell dungeon crawler following a band of misfits seeking to shoot, loot, dodge roll and table-flip their way to personal absolution by reaching the legendary Gungeon’s ultimate treasure: the gun that can kill the past.

A fast-paced action roguelike where skill beats firepower. Outmaneuver swarms, harness Poison/Inflame/Traumatize, and expand the game with mods & co-op.

Stop time and project yourself through space with “Time-stop warp” magic, pass through physical obstacles, dodge incoming bullets and shoot down your enemies! A satisfying shooter, filled with dark humor!

The creators of Crossy Road present Shooty Skies! Shoot, dodge, duck, goose and weave. Take to the skies!

High-octane roguelite ARPG (Diablo-like) fused with node alchemy — morph your dynamic node matrix, collect epic loot, and dominate the battlefield with unstoppable power.

Experience the first chapter of the post-apocalyptic Viking wasteland in this free version of Odinfall. Shoot, blast, slash, stab and explode your way through a chaotic rogue-lite, twin-stick, shooter. Team up with a friend and take on huge bosses with the brand-new co-op mode.

Bullet Dungeon is a fast-paced roguelike where every moment is filled with chaos, and excitement. Dive into intense combat, face challenging bosses, and embrace the thrill of survival inside the dungeon.

Rise up and play with up to three friends in this ever-evolving cooperative multiplayer, roguelite shooter. Explore multiple biomes, mini games, find hidden chests, and defeat numerous enemies and bosses.

Cosmic Commandos are coming to alien planet. In this roguelike third person shooter, explore open-world and shoot aliens, shoot lots of aliens. Collect resources and return to base for upgrades. If you get KIA, upgrades are lost but not your stored resources and base research. Co-op available.