Top similar games like Cyber Siege:

Enter the cockpit of your spaceship and prevent the destruction of our homeland! You and your friends have to dodge various attacks and fight many enemies. But your Twitch chat can support you in your defense and your subscribers can even accompany you as wingmen!

HELLDIVERS™ is a hardcore, cooperative, twin stick shooter. As part of the elite unit called the HELLDIVERS, players must work together to protect SUPER EARTH and defeat the enemies of mankind in an intense intergalactic war.

Grab your friends and build and fly your own customisable spaceship. With local and online co-op customise your spacecraft with a wide variety of components, you must work together to figure out the best way to survive your journey!

Ultra Mega Planet Battles is an intense arcade-style, space-based, twin-stick shooter. Players can play by themselves, or with up to 3 friends local co-op or Steam Remote Play (total of 4 players). Select your character, select and modify your ship, then get shooting!

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!

Complete high stakes missions in this intense social deduction twin-stick shooter, where friends can quickly turn into informants, bent on sabotaging you at every turn.

Zap, blast, loot, repeat in this procedurally generated twin-stick arcade-shooter. Fight aliens, fight robots, fight anything that moves and a few that don't. Then loot them all.

Astrotoons is a party-shooter offering both co-op and PvP modes up to four players. Cooperate with friends to complete missions and escape, or compete against each other in exciting PvP matches.

Quick mech battle for two players. Choose weapons, explore the map and destroy your opponent.

Blast your way through enemy lines to defeat Inferno, a madman intent on global domination. Destruction just got awesome.

Escape the grasps of death in this top down co-op shooter where two ghost fight to return to their lives!

Grab a gun and take down hostile robots corrupted by synthetic emotions! Combine weapon modifications and wreak havoc in this roguelite shooter. Let your emotions shape combat and alter boss fights! Fight alone or join up with up to 4 players!

HELLFRONT is an intense top-down shooter. Conquer ground, build a base, and command your troops in battle! Play PvP or beat the campaign co-op or solo.

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. 

Assault Android Cactus is an intense arcade style twin stick shooter - pick from one of nine unique synthetic heroines and blast your way through overwhelming robots hordes to save the ship from its own workforce. Supports single player and local co-op game modes.

In a nutshell, Intersecta is an intense and intuitive tactical top-down shooter with a distinct arcade feel. It blends fast, twitch-based gameplay with the intelligent use of tactics. The game has a unique audio-visual style, utilising the power of Unreal Engine 5 for a stunning 2.5D experience.

Astro Fighters is a tough old school vertical scrolling bullet hell shooter designed to test your skills with non-stop arcade style action. Fight against large bosses at the end of every level and compete for the high score across 4 difficulty modes to be the best fighter pilot in the game.

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. *

A top down, twin stick shooter inspired by classic retro arcade games with loads of enemies, fast paced bullet hell combat, big boss battles and tons of bullets.

A new threat arises! Will you stand up and protect the planet?It’s time to SUIT UP, survive an alien invasion and protect your loved ones in a world where Wave Survival, Twin Stick Shooters, RPG and Roguelite come together in one epic mashup!

Silicomrades is a pencil-drawn co-op shooter for two players with ever-changing gameplay. Fight against evil robo-government while dealing with the unique defect mechanic of two malfunctioning robots. Repair your friend, break your friend, and make it through 4 different episodes together!

Sagittarius is a classic side scrolling space shoot'em up in a modern take. In this epic space game it's up to you to save our solar system from destruction. Fly alone or with a friend in a local multiplayer co-op game.

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 distant world in a dystopian future, separated from her squad Amy Sol finds herself being ambushed by enemy forces looking for revenge. Pilot her nimble hovercraft to blow up as many mechs as possible in this fast-paced arena top-down shooter.

An arcade shoot'em up with unique power-infusion gameplay. Face down an unknown army alone or with a friend in online or local co-op. Navigate the cosmos to save the remants of humanity, or join them in extinction!

SCHAR: Blue Shield Alliance is a cooperative twin-stick shooter that features a variety of complementing ship classes to choose from. Upgrade your ships, defeat hundreds of enemies, save the galaxy all with some friends from the comfort of your couch.

Become a Delta Epsilon Warrior and battle your friends in this fast paced, twin-stick arena shooter. Plan your shots carefully and cut off your target's escape route with your hazard creating lasers. Deny. Eliminate. Win. Join the fight and outwit and outmanoeuvre your way to victory.

Stardust Galaxy Warriors: Stellar Climax is a fast-paced couch co-op action shooter with SHMUP/Brawler gameplay and RPG elements. Choose your mechs, weapons & upgrades then soar through space, defeat evil & save the future... from itself!

Attention! Tiny Troopers: Global Ops is a fast-paced arcade twin-stick shooter in which you lead an elite squad of Tiny Troopers on action-packed missions to take down hordes of unscrupulous enemies from all corners of the world!

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!

Twin Stick Shooter Multiplayer Action Game set in small planets that can be terraformed as you play! in which not only your shoots, but also the enemies and planet environment are your weapon!