Top-down shooter inspired by 90s arcade games. You and up to three friends play as four mercenaries as they descend into the Epsilon 9 bunker. Navigate 70+ handcrafted labyrinthine levels, purchase upgrades, and destroy chaos manifest: The Machine.
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No game lists Hollow Ground as one of its co-op favourites yet, so here are the closest matches by Steam tags instead.
Defend against hordes of zombies in this fun filled top-down shooter. Build and upgrade your base, unlock powerful guns, and take on challenging bosses with up to 4 players in online co-op. Play minigames to earn bonuses and survive the zombie apocalypse one night at a time!
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Neon Tyrant is a co-op vertical shmup where togetherness is a mechanic: fly close to bond shields, rescue downed wingmates under fire, draft run-defining perks. Campaign, endless, daily runs, boss rush — 1-4 pilots, local or online. Flying solo? Hire an AI wingman that learns. Everything glows.
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Your own reactor is the thing trying to kill you. Every kill feeds the heat, and the coolant those kills drop is the only thing that vents it — lying exactly where the danger just was. A twin-stick score chase where diving into the crowd is the only way to survive it. Five modes, co-op up to four.
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Never Immortal is a fast-paced topdown shooter playable solo or in online co-op. Survive the never-ending horde of zombies and bosses in Wave Survival gamemode, or face off against your friends in the Zombie Mystery gamemode.
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Choose your champion and fight until your last breath! Frenzy Force is a casual wave-survival game with a diverse set of weapons and unlockable characters, where you must fight through a variety of biomes against hordes of shadowy minions.
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Hold the arena solo or with three friends in online co-op. Ninety-second waves, twelve bosses, ten guns, seventy perk cards, and a build that snowballs with every kill. Survive to wave 36, kill the guardian, then see how far Endless goes.
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Ripper is a top-down shooter with fully destructible environments, fog of war, and Steam multiplayer. Break through walls, survive enemy waves, and battle your friends.
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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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Hold the line alone or with up to three friends in this top-down zombie shooter. Build barricades, lay mines and detonate barrels across six arenas. Spend your rewards on permanent gear upgrades and fight through 130 waves of zombies and bosses.
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Have You Been Waiting for a Modern Take on Classic Asteroid Shooters? 🚀 Your wait might just be over! Astro Busters brings you a fun space shooter with realistic physics, responsive controls and thrilling arcade action. Take on missions, upgrade your weapons, ships and fight solo or in multiplayer.
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