Orbital Defense Force (O.D.F) is a multiplayer shoot 'em up co-op rogue-like game. play as mercenaries working for the O.D.F., accepting contracts to defend planets from invaders and earn precious scrap that can be used to upgrade their ship to take on more difficult contracts.
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No game lists Orbital Defense Force as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.
BSG: Big Space Guns is a coop bullet hell roguelike where you step on giant buttons to activate cannons while you dodge bullets.
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Team up with up to 4 players in this fast-paced online co-op top-down shooter where humanity’s last hope stands against endless hordes of radioactive mutant frogs.
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Gatekeeper is a fast-paced rogue-like. Go on a quest to chase down Chaos and reclaim the stolen Heart of Time, fighting your way through relentless enemy forces. Play solo or in 4-player co-op and become the next Gatekeeper!
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Configure the weaponry on your ship to blast away enemies as you navigate through swarms of bullets and space battles. Each ship has unique customization options and playstyles.
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Roguevive is an roguelite survive bullet heaven. Survive against hordes of enemies getting ever stronger. Level up, unlock upgrades and new guns in this multiplayer action roguelite.
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A bullet-hell boss rush for 1–8 players. Choose your fights from 30 bosses, then face a final enemy that combines their attacks. Dodge solo or survive together, unlock abilities, and build your own raids.
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FOURVIVE is an online co-op survival action roguelike game where up to four players team up, wield a variety of weapons, and fight off waves of enemies together.
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A physics-driven sci-fi destruction roguelite. Orbit hostile worlds, unleash devastating weapons, and carve real craters into fully simulated planets while escalating planetary defenses fight back.
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Battle against hordes of violent creatures in this 2D arcade-shooter. Utilize your vast arsenal of weapons to survive across the 8 maps, level up using the unique class and perk system, beat your previous high scores as you become stronger. Endure the peril alone, or with up to 3 other friends.
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Kill the undead, get new weapons, combine weapons, kill even more undead! Over 20 weapons, INFINITE combinations. Featuring different locations to play and survive. How long can you survive?
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