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Ultraviolent bullet-hell platformer Gunnihilation is dual stick 16-bit mayhem that fuses several forms of 2D shoot 'em up, from run-and-gun classics like Contra and Metal Slug, to the arena-based slaughter of Smash TV.
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Match strength key:80+65+50+<50About Gunnihilation
Winter Gunderland content released

Welcome to the party, pal!
This holiday season, wreck a rival's office party as Santa across ten new festive levels in co-op or solo! Check out theWinter Gunderland announcement for more information.
About the Game

What is Gunnihilation?
Ultraviolent bullet-hell platformer Gunnihilation is dual-stick 16-bit mayhem that fuses several forms of 2D shoot'em up, from run and gun classics like Contra and Metal Slug, to the arena based slaughter of Smash TV. The side-scrolling action gameplay and screen-filling bosses can be tackled alone or with up to 4 players in local co-op.
What's in store during Early Access? Well...
Is there a plot?
The world is held ransom by an evil organisation with a secret weapon: waves and waves of expendable men. You are an operative in an elite task force with the critical mission of saving the world, armed only with a hammer, a handful of guns and a million billion bullets. You will need to memorise the intricate patterns of the bullet-spewing giga-bosses, time your hammer swings against charging berzerkers and practise your circle-strafing against armies of mechs. Jump, shoot, dodge, explode, hammer, shoot, explode, crush and explode your way across teeming jungles, devastated cityscapes, evil labs, stinking sewers, rickety elevators and silent train yards against hundreds of enemies per level.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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