Top similar games like DarkSwarm:

Survive the horrors of the multiverse, alone or with your comrades, as you battle against an onslaught of insectoid like creatures. Combine abilities in different ways each loop to overcome and return safely to your universe.

*Goober Arena* is a fast-paced PvP battleground where squishy combatants slam, bounce, and trap each other in chaotic, goo-filled arenas. Customize your Goober, master tricky traps, and outwit opponents in online multiplayer madness!

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. *

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.

Surviving is only half the game. The award-winning atmosphere and gameplay mechanics of the original Shadowgrounds make a triumphant return in this spin off/sequel armed with a slick new feature set! Shadowgrounds Survivor tells the story of the last remaining humans on Jupiter's moon Ganymede, where the alien onslaught is in full force.

Can you survive the alien onslaught? Gamers across the world will now have a chance to play the next chapter in this high-budget, high-quality series.

B3 will be a first-person VR shooter where you have to defend your base from waves of attacking monsters.

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.

Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.

Tempest Lost is a top-down Co-op Adventure shooter. You play as one of 4 commandos tasked with discovering the truth behind many of the events in Tempest Lost. Join with up to 3 other friends for action packed story told in the Tempest Lost Universe.

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.

Withstand an onslaught of enemies and survive against all odds in this rogue-lite twin-stick shooter. Stranded on an uncharted planet, you will need to scavange for rare loot, upgrade your ship, and unlock ancient mechanisms to escape this strange and hostile place – solo or with friends.

Multiplayer game of hiding and seeking, also with bots. Become an alien and use stealth to deceive others, or a marine and survive long enough to escape.

SYNTHETIK is an unforgiving tactical shooter rogue-lite where freedom and experimentation is key. Fight in a world overrun by the Machine Legion and their Gods. Experience the next level in gun-play and dive into unparalleled build options and Android upgrades. Can you defeat the Heart of Armageddon?

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.

SYNTHETIK 2 is a bold continuation of SYNTHETIK: Legion Rising. Fight a world overrun by the relentless Machine Legion. Experience the next level in gun-play and upgrade yourself beyond measure to rival their Gods. Can you defeat the Heart of Armageddon?

Equip various magitech, perks, and weaponry to fight against hordes of creatures beckoned to remind humanity of their hubris. Fight either alone or alongside up to two friends, and employ advanced tactics to defy the forces of fate.

Defend the earth from a robot-alien invasion, joined by Buddy, a Friend rebelling against its people. Utilize its abilities to defend your base against hordes of enemies, buy upgrades and compete on the leaderboard! Play with friends or stand alone in this fight for human civilization!

Command your squad to seek and destroy in this fast-paced Tactical Arena Shooter. Defend the Homeland as Druidic Eco-Warriors (Roze Blud), or consolidate power as Corporate Mercenaries (NEED). Know your friends, find your enemies, fight until the last drop!

Robots have invaded your planet, and they don't even see you as a threat. Beat the odds and SAVE THE GALAXY in this twin-stick cover shooter with lock-on targeting!

Co-operative multiplayer game and complete code base available for free.

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.

TAKEDOWN is a thinking-person’s shooter; brutal, hardcore and deadly - like the real thing. Not for the faint hearted, Takedown requires you to bring your 'A' game - FPS fans looking for an ultra hardcore experience only need apply!

A simple wave defense game against a hive of creatures, luckily you are a group of highly skilled combat engineers who can craft the necessary weaponry to ensure your survival.

Hack and slash? Check. Twin-stick-shooter? Check. 4 player coop to slay hordes of aliens & bosses with your friends? Check. Skills, upgrades, weapons, gears, talismans and more to make you stronger? Check. Wake up, bounty hunter. We have a mission for you. Time to clean up the scum of the galaxy.

Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!