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Single-player arena shooter FPS. Weird weapons. Relentless robots. Compete for the monthly Top 3.
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Alien Grounds
SteamAbout Alien Grounds
Alien Grounds is a fast sci-fi FPS built around arena shooter battles against relentless enemy hordes - a clean, high-speed loop of short runs, escalating pressure, and mastery. It blends boomer shooter energy with a sci-fi setting and light roguelite structure - a solo indie action game focused on pure gameplay.
Missions
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Each mission is a short run with its own score.
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Completed mission scores add to your Overall Score.
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Play the next mission, or replay to improve your result.
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Progress saves after each mission you complete.
Enemies
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Runner - fast, light hits.
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Tank - slow, heavy hits.
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Shooter - keeps distance and fires.
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Phantom - appears out of nowhere.
Weapons
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Pistol - Low damage, limited ammo.
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Automatic Rifle - Standard damage with recoil and spread. Ammo refills when low.
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Laser Gun - Standard damage with infinite energy and no recoil, but overheats if overused.
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Gravity Gun - Standard damage with infinite energy and no recoil, but speeds up the fight.
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Annihilator - Close-range panic button with a short recharge.
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Chem Gun - Poisons enemies. Kills trigger after enough enemies are poisoned.
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Freeze Gun - Area control tool that locks enemies in place. Slow recharge.
Difficulty Levels
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Easy - Relaxed and forgiving. Learn the systems.
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Medium - The intended experience. Balance and precision matter.
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Hard - Deadlier enemies. Tight resources. Highest multipliers.
Score
Your Overall Score is ranked on two leaderboards: monthly and all-time.
Get more score:
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Headshots
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Shoot fireballs
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Knock enemies off the map
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Use the gravity gun at high speed
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Use the pistol
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Avoid powerful weapons (chem gun, freeze gun, annihilator)
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Play higher missions and harder difficulty levels
Just Play
This FPS is built around clarity, speed, and mastery.
Hit Play. Chase a better score.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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